Merge "DO NOT MERGE - Merge Android 10 into master"

.gitignore

Android.bp

build.gradle

gradle/wrapper/gradle-wrapper.jar

gradle/wrapper/gradle-wrapper.properties

gradlew

gradlew.bat

java/Android.bp

java/AndroidManifest.xml

java/res/layout/emoji_palettes_view.xml

java/res/layout/user_dictionary_add_word.xml

java/res/values-ar/strings-emoji-descriptions.xml

java/res/values-ar/strings-talkback-descriptions.xml

java/res/values-ar/strings.xml

java/res/values-as/strings-action-keys.xml

java/res/values-as/strings-appname.xml

java/res/values-as/strings-config-important-notice.xml

java/res/values-as/strings-emoji-descriptions.xml

java/res/values-as/strings-letter-descriptions.xml

java/res/values-as/strings-talkback-descriptions.xml