Enable texture readback support for Android

content/browser/renderer_host/compositor_impl_android.h

 // 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 CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_
 #define CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/android/compositor.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayer.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeView.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeViewClient.h"
 
-
 struct ANativeWindow;
 
 namespace content {
 class GraphicsContext;
 
 // -----------------------------------------------------------------------------
 // Browser-side compositor that manages a tree of content and UI layers.
 // -----------------------------------------------------------------------------
 class CompositorImpl : public Compositor,
                        public WebKit::WebLayerTreeViewClient {
  public:
   explicit CompositorImpl(Compositor::Client* client);
   virtual ~CompositorImpl();
 
   static bool IsInitialized();
 
   // Compositor implementation.
   virtual void SetRootLayer(WebKit::WebLayer* root) OVERRIDE;
   virtual void SetWindowSurface(ANativeWindow* window) OVERRIDE;
   virtual void SetWindowBounds(const gfx::Size& size) OVERRIDE;
   virtual bool CompositeAndReadback(
       void *pixels, const gfx::Rect& rect) OVERRIDE;
   virtual void Composite() OVERRIDE;
   virtual WebKit::WebGLId GenerateTexture(gfx::JavaBitmap& bitmap) OVERRIDE;
   virtual WebKit::WebGLId GenerateCompressedTexture(
       gfx::Size& size, int data_size, void* data) OVERRIDE;
   virtual void DeleteTexture(WebKit::WebGLId texture_id) OVERRIDE;
+  virtual void CopyTextureToBitmap(WebKit::WebGLId texture_id,
+                                   gfx::JavaBitmap& bitmap) OVERRIDE;
 
   // WebLayerTreeViewClient implementation.
   virtual void updateAnimations(double frameBeginTime) OVERRIDE;
   virtual void layout() OVERRIDE;
   virtual void applyScrollAndScale(const WebKit::WebSize& scrollDelta,
                                    float scaleFactor) OVERRIDE;
   virtual WebKit::WebCompositorOutputSurface* createOutputSurface() OVERRIDE;
   virtual void didRecreateOutputSurface(bool success) OVERRIDE;
   virtual void didCommit() OVERRIDE;
   virtual void didCommitAndDrawFrame() OVERRIDE;
@@ skipping 14 matching lines @@
   int surface_id_;
 
   Compositor::Client* client_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorImpl);
 };
 
 } // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_