Bug 1527896 - Increase Gradle heaps to handle large assets. r=nalexander

Differential Revision: https://phabricator.services.mozilla.com/D19792

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

gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.parallel=true
 org.gradle.daemon=true
-org.gradle.jvmargs=-Xmx2560M
+org.gradle.jvmargs=-Xmx4608M

mobile/android/app/build.gradle

@@ -50,7 +50,7 @@ android {
     }
 
     dexOptions {
-        javaMaxHeapSize "2g"
+        javaMaxHeapSize "4g"
         jumboMode = true
     }
 

mobile/android/geckoview/build.gradle

@@ -124,7 +124,7 @@ android {
     }
 
     dexOptions {
-        javaMaxHeapSize "2g"
+        javaMaxHeapSize "4g"
     }
 
     lintOptions {

mobile/android/gradle/dotgradle-offline/gradle.properties

@@ -1,3 +1,4 @@
 // Per https://docs.gradle.org/current/userguide/build_environment.html, this
 // overrides the gradle.properties in topsrcdir.
 org.gradle.daemon=false
+org.gradle.jvmargs=-Xmx4608M

mobile/android/gradle/dotgradle-online/gradle.properties

@@ -1,3 +1,4 @@
 // Per https://docs.gradle.org/current/userguide/build_environment.html, this
 // overrides the gradle.properties in topsrcdir.
 org.gradle.daemon=false
+org.gradle.jvmargs=-Xmx4608M