Move definitions of GrGL basic types (e.g. GrGLenum) to their own header.

src/gpu/gl/GrGLNoOpInterface.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLNoOpInterface_DEFINED
 #define GrGLNoOpInterface_DEFINED
 
 #include "gl/GrGLDefines.h"
-#include "gl/GrGLFunctions.h"
+#include "gl/GrGLTypes.h"
 
 // These are constants/functions that are common to the Null and Debug GL interface implementations.
 
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLBindFragDataLocation(GrGLuint program,
                                                         GrGLuint colorNumber,
                                                         const GrGLchar* name);
 
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLBlendColor(GrGLclampf red,
                                               GrGLclampf green,
                                               GrGLclampf blue,
@@ skipping 367 matching lines @@
                                                           GrGLenum pname,
                                                           GrGLint* params);
 
 GrGLint GR_GL_FUNCTION_TYPE noOpGLGetUniformLocation(GrGLuint program, const char* name);
 
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLInsertEventMarker(GrGLsizei length, const char* marker);
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLPushGroupMarker(GrGLsizei length  , const char* marker);
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLPopGroupMarker();
 
 #endif