Create 1453 release branch for CEF3.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/1453@1183 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

cef3/libcef/browser/backing_store_osr.h

@@ -0,0 +1,52 @@
+// 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.
+
+#ifndef CEF_LIBCEF_BROWSER_BACKING_STORE_OSR_H_
+#define CEF_LIBCEF_BROWSER_BACKING_STORE_OSR_H_
+
+#include <vector>
+
+#include "content/browser/renderer_host/backing_store.h"
+#include "ui/gfx/canvas.h"
+
+class CefRenderWidgetHostViewOSR;
+
+class BackingStoreOSR : public content::BackingStore {
+ public:
+  static BackingStoreOSR* From(content::BackingStore* backing_store) {
+    return static_cast<BackingStoreOSR*>(backing_store);
+  }
+
+  // BackingStore implementation.
+  virtual void PaintToBackingStore(
+      content::RenderProcessHost* process,
+      TransportDIB::Id bitmap,
+      const gfx::Rect& bitmap_rect,
+      const std::vector<gfx::Rect>& copy_rects,
+      float scale_factor,
+      const base::Closure& completion_callback,
+      bool* scheduled_completion_callback) OVERRIDE;
+  virtual bool CopyFromBackingStore(const gfx::Rect& rect,
+                                    skia::PlatformBitmap* output) OVERRIDE;
+  virtual void ScrollBackingStore(const gfx::Vector2d& delta,
+                                  const gfx::Rect& clip_rect,
+                                  const gfx::Size& view_size) OVERRIDE;
+
+  const void* getPixels() const;
+
+ private:
+  // Can be instantiated only within CefRenderWidgetHostViewOSR.
+  friend class CefRenderWidgetHostViewOSR;
+  explicit BackingStoreOSR(content::RenderWidgetHost* widget,
+      const gfx::Size& size);
+  virtual ~BackingStoreOSR() {}
+
+  SkDevice device_;
+  SkCanvas canvas_;
+
+  DISALLOW_COPY_AND_ASSIGN(BackingStoreOSR);
+};
+
+#endif  // CEF_LIBCEF_BROWSER_BACKING_STORE_OSR_H_
+