ContentShell rendering support on Android.

content/browser/android/draw_delegate_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/draw_delegate_impl.h"
+
+#include "base/memory/singleton.h"
+
+namespace content {
+
+// static
+DrawDelegate* DrawDelegate::GetInstance() {
+  return DrawDelegateImpl::GetInstance();
+}
+
+// static
+DrawDelegateImpl* DrawDelegateImpl::GetInstance() {
+  return Singleton<DrawDelegateImpl>::get();
+}
+
+DrawDelegateImpl::DrawDelegateImpl() {
+}
+
+DrawDelegateImpl::~DrawDelegateImpl() {
+}
+
+void DrawDelegateImpl::SetUpdateCallback(
+    const SurfaceUpdatedCallback& callback) {
+  draw_callback_ = callback;
+}
+
+void DrawDelegateImpl::OnSurfaceUpdated(
+    uint64 texture, RenderWidgetHostView* view,
+    const SurfacePresentedCallback& present_callback) {
+  draw_callback_.Run(texture, view, present_callback);
+}
+
+}  // namespace content