Bug 889881 - Refactor and add a Gecko handler to ThreadUtils; r=blassey

mobile/android/base/util/ThreadUtils.java

@@ -18,6 +18,7 @@ public final class ThreadUtils {
     private static Thread sBackgroundThread;
 
     private static Handler sUiHandler;
+    private static Handler sGeckoHandler;
 
     @SuppressWarnings("serial")
     public static class UiThreadBlockedException extends RuntimeException {
@@ -55,8 +56,9 @@ public final class ThreadUtils {
         sUiHandler = handler;
     }
 
-    public static void setGeckoThread(Thread thread) {
+    public static void setGeckoThread(Thread thread, Handler handler) {
         sGeckoThread = thread;
+        sGeckoHandler = handler;
     }
 
     public static void setBackgroundThread(Thread thread) {
@@ -79,6 +81,10 @@ public final class ThreadUtils {
         return sGeckoThread;
     }
 
+    public static Handler getGeckoHandler() {
+        return sGeckoHandler;
+    }
+
     public static Thread getBackgroundThread() {
         return sBackgroundThread;
     }