Bug 1544076 - [1.1] Add lifecycle library dependency. r=nalexander,snorp

Differential Revision: https://phabricator.services.mozilla.com/D28082

--HG--
extra : moz-landing-system : lando

build.gradle

@@ -74,6 +74,7 @@ buildscript {
     ext.kotlin_version = '1.2.41'
     ext.support_library_version = '28.0.0'
     ext.jacoco_version = '0.8.1'
+    ext.lifecycle_library_version = '1.1.1'
 
     if (gradle.mozconfig.substs.MOZ_ANDROID_GOOGLE_PLAY_SERVICES) {
         ext.google_play_services_version = '15.0.1'

mobile/android/geckoview/build.gradle

@@ -220,6 +220,9 @@ dependencies {
     implementation "com.android.support:palette-v7:$support_library_version"
     implementation "org.yaml:snakeyaml:1.24:android"
 
+    implementation "android.arch.lifecycle:extensions:$lifecycle_library_version"
+    implementation "android.arch.lifecycle:common-java8:$lifecycle_library_version"
+
     testImplementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     testImplementation 'junit:junit:4.12'
     testImplementation 'org.robolectric:robolectric:3.8'