[PPAPI] Compositor API implementation

content/renderer/pepper/pepper_plugin_instance_impl.h

Index: content/renderer/pepper/pepper_plugin_instance_impl.h
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.h b/content/renderer/pepper/pepper_plugin_instance_impl.h
index c4874bf578107aaf0aedd6d8702c8488ef5a5ccc..5dd7a9d077cd6b5a8d1f01110d60221fbf7a3496 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.h
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.h
@@ -17,6 +17,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "cc/layers/content_layer_client.h"
+#include "cc/layers/layer.h"
 #include "cc/layers/texture_layer_client.h"
 #include "content/common/content_export.h"
 #include "content/public/renderer/pepper_plugin_instance.h"
@@ -102,6 +103,7 @@ namespace content {
 class ContentDecryptorDelegate;
 class FullscreenContainer;
 class MessageChannel;
+class PepperCompositorHost;
 class PepperGraphics2DHost;
 class PluginModule;
 class PluginObject;
@@ -678,6 +680,7 @@ class CONTENT_EXPORT PepperPluginInstanceImpl
 
   // NULL until we have been initialized.
   blink::WebPluginContainer* container_;
+  scoped_refptr<cc::Layer> compositor_layer_;
   scoped_refptr<cc::TextureLayer> texture_layer_;
   scoped_ptr<blink::WebLayer> web_layer_;
   bool layer_bound_to_fullscreen_;
@@ -701,9 +704,10 @@ class CONTENT_EXPORT PepperPluginInstanceImpl
   // same as the default values.
   bool sent_initial_did_change_view_;
 
-  // The current device context for painting in 2D and 3D.
+  // The current device context for painting in 2D, 3D or compositor.
   scoped_refptr<PPB_Graphics3D_Impl> bound_graphics_3d_;
   PepperGraphics2DHost* bound_graphics_2d_platform_;
+  PepperCompositorHost* bound_compositor_;
 
   // We track two types of focus, one from WebKit, which is the focus among
   // all elements of the page, one one from the browser, which is whether the