Allow GLES2CmdDecoder to change the GLSurface associated with the default FBO.

gpu/command_buffer/service/gles2_cmd_decoder.h

Index: gpu/command_buffer/service/gles2_cmd_decoder.h
===================================================================
--- gpu/command_buffer/service/gles2_cmd_decoder.h	(revision 137438)
+++ gpu/command_buffer/service/gles2_cmd_decoder.h	(working copy)
@@ -105,8 +105,11 @@
                           const std::vector<int32>& attribs) = 0;
 
   // Destroys the graphics context.
-  virtual void Destroy() = 0;
+  virtual void Destroy(bool have_context) = 0;
 
+  // Set the surface associated with the default FBO.
+  virtual void SetSurface(const scoped_refptr<gfx::GLSurface>& surface) = 0;
+
   virtual bool SetParent(GLES2Decoder* parent_decoder,
                          uint32 parent_texture_id) = 0;
 
@@ -122,9 +125,6 @@
   // Gets the GLES2 Util which holds info.
   virtual GLES2Util* GetGLES2Util() = 0;
 
-  // Gets the associated GLSurface.
-  virtual gfx::GLSurface* GetGLSurface() = 0;
-
   // Gets the associated GLContext.
   virtual gfx::GLContext* GetGLContext() = 0;