Add overscroll edge effect animations for Android.

content/browser/android/content_view_core_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/android/content_view_core_impl.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
@@ skipping 313 matching lines @@
 
 void ContentViewCoreImpl::SetBackgroundColor(JNIEnv* env,
                                              jobject obj,
                                              jint color) {
   RenderWidgetHostViewAndroid* rwhva = GetRenderWidgetHostViewAndroid();
   if (!rwhva)
     return;
   rwhva->OnDidChangeBodyBackgroundColor(color);
 }
 
+void ContentViewCoreImpl::SetOverscrollResources(JNIEnv* env,
+                                                 jobject obj,
+                                                 jobject edge_bitmap,
+                                                 jobject glow_bitmap) {
+  if (!CommandLine::ForCurrentProcess()->
+          HasSwitch(switches::kEnableOverscrollEdgeEffect))
+      return;
+
+  overscroll_edge_ = !edge_bitmap ?
+      SkBitmap() : gfx::CreateSkBitmapFromJavaBitmap(edge_bitmap);
+  overscroll_glow_ = !glow_bitmap ?
+      SkBitmap() : gfx::CreateSkBitmapFromJavaBitmap(glow_bitmap);
+
+  RenderWidgetHostViewAndroid* rwhva = GetRenderWidgetHostViewAndroid();
+  if (!rwhva)
+    return;
+  rwhva->OnSetOverscrollResources();
+}
+
 void ContentViewCoreImpl::OnHide(JNIEnv* env, jobject obj) {
   Hide();
 }
 
 void ContentViewCoreImpl::OnShow(JNIEnv* env, jobject obj) {
   Show();
 }
 
 void ContentViewCoreImpl::Show() {
   GetWebContents()->WasShown();
@@ skipping 1135 matching lines @@
       reinterpret_cast<WebContents*>(native_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(native_window));
   return reinterpret_cast<jint>(view);
 }
 
 bool RegisterContentViewCore(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content