[PPAPI] Add browser tests for compositor API

content/renderer/pepper/pepper_compositor_host.h

Index: content/renderer/pepper/pepper_compositor_host.h
diff --git a/content/renderer/pepper/pepper_compositor_host.h b/content/renderer/pepper/pepper_compositor_host.h
index 6d5a3efaf8335a232135d9b9b17d3a1dc9d37884..de2f72bac2545b5c68cdfd0808a0323d0871c0f9 100644
--- a/content/renderer/pepper/pepper_compositor_host.h
+++ b/content/renderer/pepper/pepper_compositor_host.h
@@ -44,17 +44,18 @@ class PepperCompositorHost : public ppapi::host::ResourceHost {
  private:
   virtual ~PepperCompositorHost();
 
-  void UpdateLayer(const scoped_refptr<cc::Layer>& layer,
-                   const ppapi::CompositorLayerData* old_layer,
-                   const ppapi::CompositorLayerData* new_layer,
-                   scoped_ptr<base::SharedMemory> image_shm);
-  void ResourceReleased(int32_t id,
-                        uint32_t sync_point,
-                        bool is_lost);
   void ImageReleased(int32_t id,
                      const scoped_ptr<base::SharedMemory>& shared_memory,
                      uint32_t sync_point,
                      bool is_lost);
+  void ResourceReleased(int32_t id,
+                        uint32_t sync_point,
+                        bool is_lost);
+  void SendCommitLayersReplyIfNecessary();
+  void UpdateLayer(const scoped_refptr<cc::Layer>& layer,
+                   const ppapi::CompositorLayerData* old_layer,
+                   const ppapi::CompositorLayerData* new_layer,
+                   scoped_ptr<base::SharedMemory> image_shm);
 
   // ResourceMessageHandler overrides:
   virtual int32_t OnResourceMessageReceived(