Bug 888482 - Make new event to set layer client in Gecko; r=snorp

widget/android/AndroidJavaWrappers.h

@@ -552,6 +552,7 @@ public:
     float GamepadButtonValue() { return mGamepadButtonValue; }
     const nsTArray<float>& GamepadValues() { return mGamepadValues; }
     int RequestId() { return mCount; } // for convenience
+    const AutoGlobalWrappedJavaObject& Object() { return mObject; }
     bool CanCoalesceWith(AndroidGeckoEvent* ae);
     WidgetTouchEvent MakeTouchEvent(nsIWidget* widget);
     MultiTouchInput MakeMultiTouchInput(nsIWidget* widget);
@@ -601,6 +602,7 @@ protected:
     nsTArray<nsString> mPrefNames;
     MultiTouchInput mApzInput;
     mozilla::layers::ScrollableLayerGuid mApzGuid;
+    AutoGlobalWrappedJavaObject mObject;
 
     void ReadIntArray(nsTArray<int> &aVals,
                       JNIEnv *jenv,
@@ -685,6 +687,8 @@ protected:
     static jfieldID jGamepadButtonValueField;
     static jfieldID jGamepadValuesField;
 
+    static jfieldID jObjectField;
+
     static jclass jDomKeyLocationClass;
     static jfieldID jDomKeyLocationValueField;
 
@@ -694,6 +698,7 @@ public:
         KEY_EVENT = 1,
         MOTION_EVENT = 2,
         SENSOR_EVENT = 3,
+        PROCESS_OBJECT = 4,
         LOCATION_EVENT = 5,
         IME_EVENT = 6,
         SIZE_CHANGED = 8,
@@ -766,6 +771,11 @@ public:
         ACTION_GAMEPAD_BUTTON = 1,
         ACTION_GAMEPAD_AXES = 2
     };
+
+    enum {
+        ACTION_OBJECT_LAYER_CLIENT = 1,
+        dummy_object_enum_list_end
+    };
 };
 
 class nsJNIString : public nsString