[PPAPI] Compositor API implementation

ppapi/proxy/compositor_layer_resource.h

Index: ppapi/proxy/compositor_layer_resource.h
diff --git a/ppapi/proxy/compositor_layer_resource.h b/ppapi/proxy/compositor_layer_resource.h
index fc0c9216afca7c3913b083636bf406b9890edae8..b8c231adabb7f1544bc1777687396e023f472245 100644
--- a/ppapi/proxy/compositor_layer_resource.h
+++ b/ppapi/proxy/compositor_layer_resource.h
@@ -6,6 +6,7 @@
 #define PPAPI_PROXY_COMPOSITOR_LAYER_RESOURCE_H_
 
 #include "ppapi/c/ppb_compositor_layer.h"
+#include "ppapi/proxy/compositor_resource.h"
 #include "ppapi/proxy/plugin_resource.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
 #include "ppapi/thunk/ppb_compositor_layer_api.h"
@@ -18,7 +19,8 @@ class PPAPI_PROXY_EXPORT CompositorLayerResource
       public thunk::PPB_CompositorLayer_API {
  public:
   CompositorLayerResource(Connection connection,
-                     PP_Instance instance);
+                          PP_Instance instance,
+                          base::WeakPtr<CompositorResource::LayerImpl> impl);
 
  private:
   virtual ~CompositorLayerResource();
@@ -48,6 +50,8 @@ class PPAPI_PROXY_EXPORT CompositorLayerResource
   virtual int32_t SetSourceRect(const struct PP_FloatRect* rect) OVERRIDE;
   virtual int32_t SetPremultipliedAlpha(PP_Bool premult) OVERRIDE;
 
+  base::WeakPtr<CompositorResource::LayerImpl> impl_;
+
   DISALLOW_COPY_AND_ASSIGN(CompositorLayerResource);
 };