Fixed build problems on Mac OS X when using GLContext from Chromium's...

app/gfx/gl/gl_interface.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file implements glue to a GL interface so we can mock it for unit
 // testing. It has to be Desktop GL, not GLES2 as it is used to test the service
 // side code.
 
 #ifndef APP_GFX_GL_GL_INTERFACE_H_
 #define APP_GFX_GL_GL_INTERFACE_H_
@@ skipping 222 matching lines @@
 
   virtual void GetVertexAttribPointerv(
       GLuint index, GLenum pname, void** pointer) = 0;
 
   virtual void Hint(GLenum target, GLenum mode) = 0;
 
   virtual GLboolean IsBuffer(GLuint buffer) = 0;
 
   virtual GLboolean IsEnabled(GLenum cap) = 0;
 
-  virtual GLboolean IsFramebuffer(GLuint framebuffer) = 0;
+  virtual GLboolean IsFramebufferEXT(GLuint framebuffer) = 0;
 
   virtual GLboolean IsProgram(GLuint program) = 0;
 
-  virtual GLboolean IsRenderbuffer(GLuint renderbuffer) = 0;
+  virtual GLboolean IsRenderbufferEXT(GLuint renderbuffer) = 0;
 
   virtual GLboolean IsShader(GLuint shader) = 0;
 
   virtual GLboolean IsTexture(GLuint texture) = 0;
 
   virtual void LineWidth(GLfloat width) = 0;
 
   virtual void LinkProgram(GLuint program) = 0;
 
   virtual void PixelStorei(GLenum pname, GLint param) = 0;
@@ skipping 139 matching lines @@
  private:
   static GLInterface* interface_;
 };
 
 }  // namespace gfx
 
 #endif  // APP_GFX_GL_GL_INTERFACE_H_