Add initial GpuMemoryBufferSurfaceTexture implementation.

content/browser/renderer_host/compositor_impl_android.h

Index: content/browser/renderer_host/compositor_impl_android.h
diff --git a/content/browser/renderer_host/compositor_impl_android.h b/content/browser/renderer_host/compositor_impl_android.h
index 93014f1941becff21a2134e1b61eaa7ffb2b8c62..09aff9570c405be5f3f516d9dd7e498089321a4e 100644
--- a/content/browser/renderer_host/compositor_impl_android.h
+++ b/content/browser/renderer_host/compositor_impl_android.h
@@ -47,6 +47,14 @@ class CONTENT_EXPORT CompositorImpl
   // 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 render_process_id,
+                                          int surface_texture_id);
+
+  // Allocates a SurfaceTexture and returns a surface texture id. Returns -1
+  // on failure.
+  static int AllocateSurfaceTexture(int render_process_id);
+
   // Compositor implementation.
   virtual void SetRootLayer(scoped_refptr<cc::Layer> root) OVERRIDE;
   virtual void SetWindowSurface(ANativeWindow* window) OVERRIDE;