Add overscroll edge effect animations for Android.

content/browser/android/content_view_core_impl.h

Index: content/browser/android/content_view_core_impl.h
diff --git a/content/browser/android/content_view_core_impl.h b/content/browser/android/content_view_core_impl.h
index 72a7256e6392926b193fc73f311725e0523716e4..eb96bcade0371f1c96fea0f397d6a6bed58922b6 100644
--- a/content/browser/android/content_view_core_impl.h
+++ b/content/browser/android/content_view_core_impl.h
@@ -29,6 +29,7 @@ class WindowAndroid;
 }
 
 namespace content {
+class OverscrollGlow;
 class RenderWidgetHostViewAndroid;
 class SyncInputEventFilter;
 
@@ -169,6 +170,10 @@ class ContentViewCoreImpl : public ContentViewCore,
 
   jint GetBackgroundColor(JNIEnv* env, jobject obj);
   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
+  void SetOverscrollResources(JNIEnv* env,
+                              jobject obj,
+                              jobject jedge_bitmap,
+                              jobject jglow_bitmap);
   void OnShow(JNIEnv* env, jobject obj);
   void OnHide(JNIEnv* env, jobject obj);
   void ClearSslPreferences(JNIEnv* env, jobject /* obj */);
@@ -286,6 +291,9 @@ class ContentViewCoreImpl : public ContentViewCore,
   void RemoveLayer(scoped_refptr<cc::Layer> layer);
   void DidProduceRendererFrame();
 
+  const SkBitmap& get_overscroll_edge() const { return overscroll_edge_; }
+  const SkBitmap& get_overscroll_glow() const { return overscroll_glow_; }
+
  private:
   class ContentViewUserData;
 
@@ -353,6 +361,9 @@ class ContentViewCoreImpl : public ContentViewCore,
   // Optional browser-side input event filtering.
   scoped_ptr<SyncInputEventFilter> input_event_filter_;
 
+  SkBitmap overscroll_edge_;
+  SkBitmap overscroll_glow_;
+
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };