content: Add multi-proc surface texture support.

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/containers/scoped_ptr_hash_map.h"
@@ skipping 24 matching lines @@
 // -----------------------------------------------------------------------------
 // Browser-side compositor that manages a tree of content and UI layers.
 // -----------------------------------------------------------------------------
 class CONTENT_EXPORT CompositorImpl
     : public Compositor,
       public cc::LayerTreeHostClient,
       public cc::LayerTreeHostSingleThreadClient,
       public ImageTransportFactoryAndroidObserver,
       public ui::WindowAndroidCompositor {
  public:
+  typedef base::Callback<void(int32)> CreateSurfaceTextureCallback;
+
   CompositorImpl(CompositorClient* client, gfx::NativeWindow root_window);
   virtual ~CompositorImpl();
 
   static bool IsInitialized();
 
   // Returns the Java Surface object for a given view surface id.
   static jobject GetSurface(int surface_id);
 
   // Returns the Java Surface object for a given surface texture id.
   static jobject GetSurfaceTextureSurface(int surface_texture_id,
                                           base::ProcessHandle process_handle);
 
-  // Allocates a surface texture and returns a surface texture id. Returns -1 on
-  // failure.
-  static int AllocateSurfaceTexture(base::ProcessHandle process_handle);
+  // Creates a new surface texture.
+  static void CreateSurfaceTexture(
+      base::ProcessHandle process_handle,
+      const CreateSurfaceTextureCallback& callback);
 
   // Destroy all surface textures associated with |process_handle|.
   static void DestroyAllSurfaceTextures(base::ProcessHandle process_handle);
 
   // Compositor implementation.
   virtual void SetRootLayer(scoped_refptr<cc::Layer> root) OVERRIDE;
   virtual void SetWindowSurface(ANativeWindow* window) OVERRIDE;
   virtual void SetSurface(jobject surface) OVERRIDE;
   virtual void SetVisible(bool visible) OVERRIDE;
   virtual void setDeviceScaleFactor(float factor) OVERRIDE;
@@ skipping 37 matching lines @@
   virtual void OnLostResources() OVERRIDE;
 
   // WindowAndroidCompositor implementation.
   virtual void AttachLayerForReadback(scoped_refptr<cc::Layer> layer) OVERRIDE;
 
  private:
   cc::UIResourceId GenerateUIResourceFromUIResourceBitmap(
       const cc::UIResourceBitmap& bitmap,
       bool is_transient);
 
+  static void OnSurfaceTextureCreated(
+      int surface_texture_id,
+      base::ProcessHandle handle,
+      const CreateSurfaceTextureCallback& callback);
+
   scoped_refptr<cc::Layer> root_layer_;
   scoped_ptr<cc::LayerTreeHost> host_;
 
   gfx::Size size_;
   bool has_transparent_background_;
   float device_scale_factor_;
 
   ANativeWindow* window_;
   int surface_id_;
 
   CompositorClient* client_;
 
   scoped_refptr<cc::ContextProvider> null_offscreen_context_provider_;
 
   typedef base::ScopedPtrHashMap<cc::UIResourceId, cc::UIResourceClient>
       UIResourceMap;
   UIResourceMap ui_resource_map_;
 
   gfx::NativeWindow root_window_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorImpl);
 };
 
 } // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_