Make ui::Snapshot asynchronous on Android, remove CompositeAndReadback.

content/browser/android/content_view_render_view.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_render_view.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/bind.h"
@@ skipping 99 matching lines @@
 
 void ContentViewRenderView::SurfaceChanged(JNIEnv* env, jobject obj,
     jint format, jint width, jint height, jobject surface) {
   if (current_surface_format_ != format) {
     current_surface_format_ = format;
     compositor_->SetSurface(surface);
   }
   compositor_->SetWindowBounds(gfx::Size(width, height));
 }
 
-jboolean ContentViewRenderView::CompositeToBitmap(JNIEnv* env, jobject obj,
-                                                  jobject java_bitmap) {
-  gfx::JavaBitmap bitmap(java_bitmap);
-  if (!compositor_ || bitmap.format() != ANDROID_BITMAP_FORMAT_RGBA_8888)
-    return false;
-  return compositor_->CompositeAndReadback(bitmap.pixels(),
-                                           gfx::Rect(bitmap.size()));
-}
-
 void ContentViewRenderView::SetOverlayVideoMode(
     JNIEnv* env, jobject obj, bool enabled) {
   compositor_->SetHasTransparentBackground(enabled);
 }
 
 void ContentViewRenderView::Layout() {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_ContentViewRenderView_onCompositorLayout(env, java_obj_.obj());
 }
 
 void ContentViewRenderView::OnSwapBuffersCompleted(int pending_swap_buffers) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_ContentViewRenderView_onSwapBuffersCompleted(env, java_obj_.obj());
 }
 
 void ContentViewRenderView::InitCompositor() {
   if (!compositor_)
     compositor_.reset(Compositor::Create(this, root_window_));
 }
 }  // namespace content