Android text selection handle color

Hello, we are having a problem changing the webview text handle colors, it's not possible to change using `ThemeData` -> `textSelectionColor` or `cursorColor`

## System info

Issue occurs on: Android only (iOS seems to have a different text handle)
Plugin version: 0.3.10
Flutter doctor output:

```
[✓] Flutter (Channel stable, v1.12.13+hotfix.8, on Linux, locale en_US.UTF-8)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
✗ Android license status unknown.
Try re-installing or updating your Android SDK Manager.
See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed instructions.
[!] Android Studio (not installed)
[!] IntelliJ IDEA Ultimate Edition (version 2019.3)
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] VS Code (version 1.43.0)
[✓] Connected device (1 available)

! Doctor found issues in 3 categories.
```

## Steps to Reproduce

Just create any project with a `WebviewScaffold`, the text selection handle is green, it's not possible to change using `textSelectionColor` or `cursorColor` from `ThemeData`.

1. Access any URL that have a textfield
2. Type something on the textfield
3. Select the text on the textfield

https://gist.github.com/igormcampos/a9660d3802505d5e83161fbde4344197

## Logs

```
[ +13 ms] executing: [/home/user/flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[ +22 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[ ] 0b8abb4724aa590dd0f429683339b1e045a1594d
[ ] executing: [/home/user/flutter/] git describe --match v*.*.* --first-parent --long --tags
[ +14 ms] Exit code 0 from: git describe --match v*.*.* --first-parent --long --tags
[ ] v1.12.13+hotfix.8-0-g0b8abb472
[ +4 ms] executing: [/home/user/flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[ +4 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ ] origin/stable
[ ] executing: [/home/user/flutter/] git ls-remote --get-url origin
[ +3 ms] Exit code 0 from: git ls-remote --get-url origin
[ ] https://github.com/flutter/flutter.git
[ +31 ms] executing: [/home/user/flutter/] git rev-parse --abbrev-ref HEAD
[ +5 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ ] stable
[ +65 ms] executing: /home/user/Android/Sdk/platform-tools/adb devices -l
[ +4 ms] Exit code 0 from: /home/user/Android/Sdk/platform-tools/adb devices -l
[ ] List of devices attached
CB512BJ73A device usb:1-1 product:F8332 model:F8332 device:F8332 transport_id:17
[ +12 ms] /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A shell getprop
[ +153 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[ +6 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ +1 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +33 ms] Found plugin flutter_webview_plugin at /home/user/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_webview_plugin-0.3.10+1/
[ +43 ms] Found plugin flutter_webview_plugin at /home/user/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_webview_plugin-0.3.10+1/
[ +42 ms] Generating /home/user/projects/webview_handlers/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
[ +40 ms] ro.hardware = qcom
[ +43 ms] Launching lib/main.dart on F8332 in debug mode...
[ +6 ms] executing: /home/user/Android/Sdk/build-tools/29.0.2/aapt dump xmltree /home/user/projects/webview_handlers/build/app/outputs/apk/app.apk AndroidManifest.xml
[ +7 ms] Exit code 0 from: /home/user/Android/Sdk/build-tools/29.0.2/aapt dump xmltree /home/user/projects/webview_handlers/build/app/outputs/apk/app.apk AndroidManifest.xml
[ ] N: android=http://schemas.android.com/apk/res/android
E: manifest (line=2)
A: android:versionCode(0x0101021b)=(type 0x10)0x1
A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1c
A: android:compileSdkVersionCodename(0x01010573)="9" (Raw: "9")
A: package="com.example.webview_handlers" (Raw: "com.example.webview_handlers")
A: platformBuildVersionCode=(type 0x10)0x1c
A: platformBuildVersionName=(type 0x10)0x9
E: uses-sdk (line=7)
A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1c
E: uses-permission (line=14)
A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
E: application (line=22)
A: android:label(0x01010001)="webview_handlers" (Raw: "webview_handlers")
A: android:icon(0x01010002)=@0x7f0b0000
A: android:name(0x01010003)="io.flutter.app.FlutterApplication" (Raw: "io.flutter.app.FlutterApplication")
A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
E: activity (line=28)
A: android:theme(0x01010000)=@0x7f0d00a1
A: android:name(0x01010003)="com.example.webview_handlers.MainActivity" (Raw: "com.example.webview_handlers.MainActivity")
A: android:launchMode(0x0101001d)=(type 0x10)0x1
A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
E: intent-filter (line=35)
E: action (line=36)
A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
E: category (line=38)
A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
E: meta-data (line=45)
A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
A: android:value(0x01010024)=(type 0x10)0x2
E: provider (line=49)
A: android:name(0x01010003)="androidx.core.content.FileProvider" (Raw: "androidx.core.content.FileProvider")
A: android:exported(0x01010010)=(type 0x12)0x0
A: android:authorities(0x01010018)="com.example.webview_handlers.fileprovider" (Raw: "com.example.webview_handlers.fileprovider")
A: android:grantUriPermissions(0x0101001b)=(type 0x12)0xffffffff
E: meta-data (line=54)
A: android:name(0x01010003)="android.support.FILE_PROVIDER_PATHS" (Raw: "android.support.FILE_PROVIDER_PATHS")
A: android:resource(0x01010025)=@0x7f0f0000
[ +6 ms] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A shell -x logcat -v time -t 1
[ +78 ms] Exit code 0 from: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A shell -x logcat -v time -t 1
[ ] --------- beginning of main
03-10 18:00:32.265 W/Assist ( 7133): *** EventLogNativeAccessor: Tag code -1 is not known by eventlog
[ +19 ms] executing: /home/user/Android/Sdk/platform-tools/adb version
[ +3 ms] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A logcat -v time -T 03-10 18:00:32.265
[ +30 ms] Android Debug Bridge version 1.0.41
Version 29.0.5-5949299
Installed as /home/user/Android/Sdk/platform-tools/adb
[ +2 ms] executing: /home/user/Android/Sdk/platform-tools/adb start-server
[ +14 ms] Building APK
[ +13 ms] Running Gradle task 'assembleDebug'...
[ +1 ms] gradle.properties already sets `android.enableR8`
[ +2 ms] Using gradle from /home/user/projects/webview_handlers/android/gradlew.
[ +11 ms] executing: [/home/user/projects/webview_handlers/android/] /home/user/projects/webview_handlers/android/gradlew -Pverbose=true -Ptarget=/home/user/projects/webview_handlers/lib/main.dart
-Ptrack-widget-creation=true -Pfilesystem-scheme=org-dartlang-root -Ptarget-platform=android-arm64 assembleDebug
[+2814 ms] > Task :app:compileFlutterBuildDebug
[ ] [ +14 ms] executing: [/home/user/flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[ ] [ +21 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[ ] [ ] 0b8abb4724aa590dd0f429683339b1e045a1594d
[ ] [ ] executing: [/home/user/flutter/] git describe --match v*.*.* --first-parent --long --tags
[ ] [ +4 ms] Exit code 0 from: git describe --match v*.*.* --first-parent --long --tags
[ ] [ ] v1.12.13+hotfix.8-0-g0b8abb472
[ ] [ +5 ms] executing: [/home/user/flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[ ] [ +4 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ ] [ ] origin/stable
[ ] [ ] executing: [/home/user/flutter/] git ls-remote --get-url origin
[ ] [ +3 ms] Exit code 0 from: git ls-remote --get-url origin
[ ] [ ] https://github.com/flutter/flutter.git
[ ] [ +32 ms] executing: [/home/user/flutter/] git rev-parse --abbrev-ref HEAD
[ ] [ +4 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ ] [ ] stable
[ ] [ +15 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ ] [ +2 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] [ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ ] [ +59 ms] Initializing file store
[ ] [ +8 ms] Done initializing file store
[ ] [+1028 ms] kernel_snapshot: Starting due to {InvalidatedReason.inputChanged}
[ ] [ +9 ms] /home/user/flutter/bin/cache/dart-sdk/bin/dart /home/user/flutter/bin/cache/artifacts/engine/linux-x64/frontend_server.dart.snapshot --sdk-root
/home/user/flutter/bin/cache/artifacts/engine/common/flutter_patched_sdk/ --target=flutter -Ddart.developer.causal_async_stacks=true -Ddart.vm.profile=false -Ddart.vm.product=false
--bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachable-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation --no-link-platform
--packages /home/user/projects/webview_handlers/.packages --output-dill /home/user/projects/webview_handlers/.dart_tool/flutter_build/68f38e580aeef3647ad23af0ba4eccc3/app.dill --depfile
/home/user/projects/webview_handlers/.dart_tool/flutter_build/68f38e580aeef3647ad23af0ba4eccc3/kernel_snapshot.d package:webview_handlers/main.dart
[+3789 ms] [+4012 ms] kernel_snapshot: Complete
[ +200 ms] [ +255 ms] debug_android_application: Starting due to {InvalidatedReason.inputChanged, InvalidatedReason.outputMissing}
[ +199 ms] [ +123 ms] debug_android_application: Complete
[ ] [ +9 ms] Persisting file store
[ ] [ +3 ms] Done persisting file store
[ ] [ +2 ms] build succeeded.
[ ] [ +8 ms] "flutter assemble" took 5,543ms.
[ +99 ms] > Task :app:packLibsflutterBuildDebug UP-TO-DATE
[ ] > Task :app:preBuild UP-TO-DATE
[ ] > Task :app:preDebugBuild UP-TO-DATE
[ ] > Task :flutter_webview_plugin:preBuild UP-TO-DATE
[ ] > Task :flutter_webview_plugin:preDebugBuild UP-TO-DATE
[ ] > Task :flutter_webview_plugin:packageDebugRenderscript NO-SOURCE
[ ] > Task :app:checkDebugManifest UP-TO-DATE
[ ] > Task :app:generateDebugBuildConfig UP-TO-DATE
[ ] > Task :app:compileDebugRenderscript NO-SOURCE
[ ] > Task :app:cleanMergeDebugAssets
[ ] > Task :flutter_webview_plugin:compileDebugAidl NO-SOURCE
[ ] > Task :app:compileDebugAidl NO-SOURCE
[ ] > Task :app:mergeDebugShaders UP-TO-DATE
[ ] > Task :app:compileDebugShaders UP-TO-DATE
[ ] > Task :app:generateDebugAssets UP-TO-DATE
[ ] > Task :flutter_webview_plugin:mergeDebugShaders UP-TO-DATE
[ ] > Task :flutter_webview_plugin:compileDebugShaders UP-TO-DATE
[ ] > Task :flutter_webview_plugin:generateDebugAssets UP-TO-DATE
[ ] > Task :flutter_webview_plugin:packageDebugAssets UP-TO-DATE
[ ] > Task :app:mergeDebugAssets
[ +196 ms] > Task :app:copyFlutterAssetsDebug
[ +1 ms] > Task :app:mainApkListPersistenceDebug UP-TO-DATE
[ ] > Task :app:generateDebugResValues UP-TO-DATE
[ ] > Task :app:generateDebugResources UP-TO-DATE
[ ] > Task :flutter_webview_plugin:generateDebugResValues UP-TO-DATE
[ ] > Task :flutter_webview_plugin:compileDebugRenderscript NO-SOURCE
[ ] > Task :flutter_webview_plugin:generateDebugResources UP-TO-DATE
[ ] > Task :flutter_webview_plugin:packageDebugResources UP-TO-DATE
[ ] > Task :app:mergeDebugResources UP-TO-DATE
[ ] > Task :app:createDebugCompatibleScreenManifests UP-TO-DATE
[ ] > Task :flutter_webview_plugin:checkDebugManifest UP-TO-DATE
[ ] > Task :flutter_webview_plugin:processDebugManifest UP-TO-DATE
[ +97 ms] > Task :app:processDebugManifest UP-TO-DATE
[ ] > Task :flutter_webview_plugin:parseDebugLibraryResources UP-TO-DATE
[ ] > Task :flutter_webview_plugin:generateDebugRFile UP-TO-DATE
[ ] > Task :app:processDebugResources UP-TO-DATE
[ ] > Task :flutter_webview_plugin:generateDebugBuildConfig UP-TO-DATE
[ ] > Task :flutter_webview_plugin:javaPreCompileDebug UP-TO-DATE
[ ] > Task :flutter_webview_plugin:compileDebugJavaWithJavac UP-TO-DATE
[ ] > Task :flutter_webview_plugin:bundleLibCompileDebug UP-TO-DATE
[ ] > Task :app:compileDebugKotlin UP-TO-DATE
[ ] > Task :app:javaPreCompileDebug UP-TO-DATE
[ ] > Task :app:compileDebugJavaWithJavac UP-TO-DATE
[ ] > Task :app:compileDebugSources UP-TO-DATE
[ ] > Task :app:processDebugJavaRes NO-SOURCE
[ ] > Task :flutter_webview_plugin:processDebugJavaRes NO-SOURCE
[ ] > Task :flutter_webview_plugin:bundleLibResDebug UP-TO-DATE
[ ] > Task :app:mergeDebugJavaResource UP-TO-DATE
[ ] > Task :flutter_webview_plugin:bundleLibRuntimeDebug UP-TO-DATE
[ ] > Task :flutter_webview_plugin:createFullJarDebug UP-TO-DATE
[ ] > Task :app:checkDebugDuplicateClasses UP-TO-DATE
[ ] > Task :app:desugarDebugFileDependencies UP-TO-DATE
[ +97 ms] > Task :app:transformClassesWithDexBuilderForDebug UP-TO-DATE
[ ] > Task :app:mergeExtDexDebug UP-TO-DATE
[ ] > Task :app:mergeDexDebug UP-TO-DATE
[ ] > Task :app:validateSigningDebug UP-TO-DATE
[ ] > Task :app:signingConfigWriterDebug UP-TO-DATE
[ ] > Task :app:mergeDebugJniLibFolders UP-TO-DATE
[ ] > Task :flutter_webview_plugin:mergeDebugJniLibFolders UP-TO-DATE
[ ] > Task :flutter_webview_plugin:mergeDebugNativeLibs UP-TO-DATE
[ ] > Task :flutter_webview_plugin:stripDebugDebugSymbols UP-TO-DATE
[ ] > Task :flutter_webview_plugin:transformNativeLibsWithIntermediateJniLibsForDebug UP-TO-DATE
[ ] > Task :app:mergeDebugNativeLibs UP-TO-DATE
[ ] > Task :app:stripDebugDebugSymbols UP-TO-DATE
[ ] Compatible side by side NDK version was not found.
[+1099 ms] > Task :app:packageDebug
[ ] > Task :app:assembleDebug
[ ] > Task :flutter_webview_plugin:extractDebugAnnotations UP-TO-DATE
[ ] > Task :flutter_webview_plugin:mergeDebugGeneratedProguardFiles UP-TO-DATE
[ +57 ms] > Task :flutter_webview_plugin:mergeDebugConsumerProguardFiles UP-TO-DATE
[ ] > Task :flutter_webview_plugin:prepareLintJarForPublish UP-TO-DATE
[ ] > Task :flutter_webview_plugin:mergeDebugJavaResource UP-TO-DATE
[ ] > Task :flutter_webview_plugin:transformClassesAndResourcesWithSyncLibJarsForDebug UP-TO-DATE
[ ] > Task :flutter_webview_plugin:transformNativeLibsWithSyncJniLibsForDebug UP-TO-DATE
[ ] > Task :flutter_webview_plugin:bundleDebugAar UP-TO-DATE
[ ] > Task :flutter_webview_plugin:mergeDebugResources UP-TO-DATE
[ ] > Task :flutter_webview_plugin:compileDebugSources UP-TO-DATE
[ ] > Task :flutter_webview_plugin:assembleDebug UP-TO-DATE
[ ] BUILD SUCCESSFUL in 8s
[ ] 59 actionable tasks: 5 executed, 54 up-to-date
[ +355 ms] Running Gradle task 'assembleDebug'... (completed in 9.0s)
[ +121 ms] calculateSha: LocalDirectory: '/home/user/projects/webview_handlers/build/app/outputs/apk'/app.apk
[ +46 ms] calculateSha: reading file took 46us
[ +499 ms] calculateSha: computing sha took 498us
[ +2 ms] ✓ Built build/app/outputs/apk/debug/app-debug.apk.
[ +2 ms] executing: /home/user/Android/Sdk/build-tools/29.0.2/aapt dump xmltree /home/user/projects/webview_handlers/build/app/outputs/apk/app.apk AndroidManifest.xml
[ +8 ms] Exit code 0 from: /home/user/Android/Sdk/build-tools/29.0.2/aapt dump xmltree /home/user/projects/webview_handlers/build/app/outputs/apk/app.apk AndroidManifest.xml
[ ] N: android=http://schemas.android.com/apk/res/android
E: manifest (line=2)
A: android:versionCode(0x0101021b)=(type 0x10)0x1
A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1c
A: android:compileSdkVersionCodename(0x01010573)="9" (Raw: "9")
A: package="com.example.webview_handlers" (Raw: "com.example.webview_handlers")
A: platformBuildVersionCode=(type 0x10)0x1c
A: platformBuildVersionName=(type 0x10)0x9
E: uses-sdk (line=7)
A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1c
E: uses-permission (line=14)
A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
E: application (line=22)
A: android:label(0x01010001)="webview_handlers" (Raw: "webview_handlers")
A: android:icon(0x01010002)=@0x7f0b0000
A: android:name(0x01010003)="io.flutter.app.FlutterApplication" (Raw: "io.flutter.app.FlutterApplication")
A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
E: activity (line=28)
A: android:theme(0x01010000)=@0x7f0d00a1
A: android:name(0x01010003)="com.example.webview_handlers.MainActivity" (Raw: "com.example.webview_handlers.MainActivity")
A: android:launchMode(0x0101001d)=(type 0x10)0x1
A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
E: intent-filter (line=35)
E: action (line=36)
A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
E: category (line=38)
A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
E: meta-data (line=45)
A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
A: android:value(0x01010024)=(type 0x10)0x2
E: provider (line=49)
A: android:name(0x01010003)="androidx.core.content.FileProvider" (Raw: "androidx.core.content.FileProvider")
A: android:exported(0x01010010)=(type 0x12)0x0
A: android:authorities(0x01010018)="com.example.webview_handlers.fileprovider" (Raw: "com.example.webview_handlers.fileprovider")
A: android:grantUriPermissions(0x0101001b)=(type 0x12)0xffffffff
E: meta-data (line=54)
A: android:name(0x01010003)="android.support.FILE_PROVIDER_PATHS" (Raw: "android.support.FILE_PROVIDER_PATHS")
A: android:resource(0x01010025)=@0x7f0f0000
[ +2 ms] Stopping app 'app.apk' on F8332.
[ +1 ms] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A shell am force-stop com.example.webview_handlers
[ +138 ms] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A shell pm list packages com.example.webview_handlers
[+1035 ms] package:com.example.webview_handlers
[ +8 ms] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A shell cat /data/local/tmp/sky.com.example.webview_handlers.sha1
[ +76 ms] 8612fad7f2682762a788f60450f954edcd2a26a1
[ +2 ms] Installing APK.
[ +4 ms] executing: /home/user/Android/Sdk/platform-tools/adb version
[ +22 ms] Android Debug Bridge version 1.0.41
Version 29.0.5-5949299
Installed as /home/user/Android/Sdk/platform-tools/adb
[ +1 ms] executing: /home/user/Android/Sdk/platform-tools/adb start-server
[ +20 ms] Installing build/app/outputs/apk/app.apk...
[ ] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A install -t -r /home/user/projects/webview_handlers/build/app/outputs/apk/app.apk
[+8938 ms] Performing Streamed Install
Success
[ ] Installing build/app/outputs/apk/app.apk... (completed in 8.9s)
[ ] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A shell echo -n 6887be8150ad2b47d8dcc32a418b06936840a142 > /data/local/tmp/sky.com.example.webview_handlers.sha1
[ +27 ms] F8332 startApp
[ +3 ms] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A shell am start -a android.intent.action.RUN -f 0x20000000 --ez enable-background-compilation true --ez enable-dart-profiling true
--ez enable-checked-mode true --ez verify-entry-points true com.example.webview_handlers/com.example.webview_handlers.MainActivity
[ +264 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=com.example.webview_handlers/.MainActivity (has extras) }
[ ] Waiting for observatory port to be available...
[ +497 ms] D/FlutterActivity(32754): Using the launch theme as normal theme.
[ +3 ms] D/FlutterActivityAndFragmentDelegate(32754): Setting up FlutterEngine.
[ ] D/FlutterActivityAndFragmentDelegate(32754): No preferred FlutterEngine was provided. Creating a new FlutterEngine for this FlutterFragment.
[+1530 ms] D/FlutterActivityAndFragmentDelegate(32754): Attaching FlutterEngine to the Activity that owns this Fragment.
[ +47 ms] Observatory URL on device: http://127.0.0.1:55734/63NgCjv1u6k=/
[ +1 ms] executing: /home/user/Android/Sdk/platform-tools/adb -s CB512BJ73A forward tcp:0 tcp:55734
[ +6 ms] 36201
[ ] Forwarded host port 36201 to device port 55734 for Observatory
[ +9 ms] Connecting to service protocol: http://127.0.0.1:36201/63NgCjv1u6k=/
[ +8 ms] D/FlutterView(32754): Attaching to a FlutterEngine: io.flutter.embedding.engine.FlutterEngine@23a076
[ +14 ms] D/FlutterActivityAndFragmentDelegate(32754): Executing Dart entrypoint: main, and sending initial route: /
[ +480 ms] Successfully connected to service protocol: http://127.0.0.1:36201/63NgCjv1u6k=/
[ +9 ms] Sending to VM service: getVM({})
[ +14 ms] Result: {type: VM, name: vm, architectureBits: 64, hostCPU: Qualcomm Technologies, Inc MSM8996, operatingSystem: android, targetCPU: arm64, version: 2.7.0 (Fri Dec 6 16:26:51 2019 +0100) on
"android_arm64", _profilerMode: VM, _nativeZoneMemoryUsage: 0, pi...
[ +7 ms] Sending to VM service: getIsolate({isolateId: isolates/1215059476213979})
[ +4 ms] Sending to VM service: _flutter.listViews({})
[ +15 ms] Result: {type: FlutterViewList, views: [{type: FlutterView, id: _flutterView/0x7b46e52620, isolate: {type: @Isolate, fixedId: true, id: isolates/1215059476213979, name:
main.dart$main-1215059476213979, number: 1215059476213979}}]}
[ +4 ms] DevFS: Creating new filesystem on the device (null)
[ ] Sending to VM service: _createDevFS({fsName: webview_handlers})
[ +122 ms] Result: {type: Isolate, id: isolates/1215059476213979, name: main, number: 1215059476213979, _originNumber: 1215059476213979, startTime: 1583874063138, _heaps: {new: {type: HeapSpace, name: new,
vmName: Scavenger, collections: 0, avgCollectionPeriodMillis...
[ +7 ms] Result: {type: FileSystem, name: webview_handlers, uri: file:///data/user/0/com.example.webview_handlers/code_cache/webview_handlersGMNMRA/webview_handlers/}
[ ] DevFS: Created new filesystem on the device (file:///data/user/0/com.example.webview_handlers/code_cache/webview_handlersGMNMRA/webview_handlers/)
[ +1 ms] Updating assets
[ +53 ms] Syncing files to device F8332...
[ ] Scanning asset files
[ +1 ms] <- reset
[ ] Compiling dart to kernel with 0 updated files
[ +4 ms] /home/user/flutter/bin/cache/dart-sdk/bin/dart /home/user/flutter/bin/cache/artifacts/engine/linux-x64/frontend_server.dart.snapshot --sdk-root
/home/user/flutter/bin/cache/artifacts/engine/common/flutter_patched_sdk/ --incremental --target=flutter -Ddart.developer.causal_async_stacks=true --output-dill /tmp/flutter_tool.WZSTEB/app.dill --packages
/home/user/projects/webview_handlers/.packages -Ddart.vm.profile=false -Ddart.vm.product=false
--bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachable-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation --filesystem-scheme
org-dartlang-root
[ +5 ms] <- compile package:webview_handlers/main.dart
[+1308 ms] W/ResourceType(32754): Found multiple library tables, ignoring...
[ ] I/WebViewFactory(32754): Loading com.android.chrome version 80.0.3987.132 (code 398713232)
[ +337 ms] I/cr_LibraryLoader(32754): Loaded native library version number "80.0.3987.132"
[ +63 ms] W/ResourceType(32754): Failure getting entry for 0x7f130543 (t=18 e=1347) (error -2147483647)
[ +144 ms] W/chromium(32754): [WARNING:dns_config_service_posix.cc(341)] Failed to read DnsConfig.
[ +191 ms] W/cr_media(32754): Requires BLUETOOTH permission
[ +135 ms] D/NetworkSecurityConfig(32754): No Network Security Config specified, using platform default
[ +44 ms] W/VideoCapabilities(32754): Unrecognized profile 2130706433 for video/avc
[ ] W/VideoCapabilities(32754): Unrecognized profile 2130706434 for video/avc
[ +22 ms] W/VideoCapabilities(32754): Unrecognized profile 2130706433 for video/avc
[ ] W/VideoCapabilities(32754): Unrecognized profile 2130706434 for video/avc
[ ] W/VideoCapabilities(32754): Unrecognized profile 2130706433 for video/avc
[ ] W/VideoCapabilities(32754): Unrecognized profile 2130706434 for video/avc
[ +36 ms] W/VideoCapabilities(32754): Unsupported mime video/mp4v-esdp
[ +29 ms] I/VideoCapabilities(32754): Unsupported profile 4 for video/mp4v-es
[ +258 ms] I/zygote64(32754): Do partial code cache collection, code=26KB, data=28KB
[ +6 ms] I/zygote64(32754): After code cache collection, code=26KB, data=28KB
[ ] I/zygote64(32754): Increasing code cache capacity to 128KB
[+1485 ms] I/zygote64(32754): Do partial code cache collection, code=60KB, data=54KB
[ ] I/zygote64(32754): After code cache collection, code=60KB, data=54KB
[ +1 ms] I/zygote64(32754): Increasing code cache capacity to 256KB
[ +3 ms] Updating files
[ +172 ms] DevFS: Sync finished
[ +1 ms] Syncing files to device F8332... (completed in 4,256ms, longer than expected)
[ ] Synced 0.9MB.
[ ] Sending to VM service: _flutter.listViews({})
[ +5 ms] Result: {type: FlutterViewList, views: [{type: FlutterView, id: _flutterView/0x7b46e52620, isolate: {type: @Isolate, fixedId: true, id: isolates/1215059476213979, name:
main.dart$main-1215059476213979, number: 1215059476213979}}]}
[ ] <- accept
[ ] Connected to _flutterView/0x7b46e52620.
[ +1 ms] 🔥 To hot reload changes while running, press "r". To hot restart (and rebuild state), press "R".
[ ] An Observatory debugger and profiler on F8332 is available at: http://127.0.0.1:36201/63NgCjv1u6k=/
[ ] For a more detailed help message, press "h". To detach, press "d"; to quit, press "q".
[+3320 ms] I/AssistStructure(32754): Flattened final assist data: 1340 bytes, containing 1 windows, 3 views
[+5592 ms] I/zygote64(32754): Compiler allocated 6MB to compile void android.view.ViewRootImpl.performTraversals()
[ +11 ms] I/zygote64(32754): Do full code cache collection, code=124KB, data=94KB
[ +4 ms] I/zygote64(32754): After code cache collection, code=118KB, data=72KB
[ +33 ms] I/zygote64(32754): Do partial code cache collection, code=119KB, data=76KB
[ ] I/zygote64(32754): After code cache collection, code=119KB, data=76KB
[ ] I/zygote64(32754): Increasing code cache capacity to 512KB

```

No issues found using `flutter analyze`

```
[✓] Flutter (Channel stable, v1.12.13+hotfix.8, on Linux, locale en_US.UTF-8)
• Flutter version 1.12.13+hotfix.8 at /home/user/flutter
• Framework revision 0b8abb4724 (4 weeks ago), 2020-02-11 11:44:36 -0800
• Engine revision e1e6ced81d
• Dart version 2.7.0

[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at /home/user/Android/Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.2
• ANDROID_HOME = /home/user/Android/Sdk
• Java binary at: /usr/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.6+10-post-Ubuntu-1ubuntu118.04.1)
✗ Android license status unknown.
Try re-installing or updating your Android SDK Manager.
See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed instructions.

[!] Android Studio (not installed)
• Android Studio not found; download from https://developer.android.com/studio/index.html
(or visit https://flutter.dev/setup/#android-setup for detailed instructions).

[!] IntelliJ IDEA Ultimate Edition (version 2019.3)
• IntelliJ at /opt/idea-IU-193.6015.39
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
• For information about installing plugins, see
https://flutter.dev/intellij-setup/#installing-the-plugins

[✓] VS Code (version 1.43.0)
• VS Code at /usr/share/code
• Flutter extension version 3.8.1

[✓] Connected device (1 available)
• F8332 • CB512BJ73A • android-arm64 • Android 8.0.0 (API 26)

! Doctor found issues in 3 categories.
```