Removing GL context rate limiting feature and related wrappers

gpu/GLES2/gl2extchromium.h

 // Copyright (c) 2012 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 contains Chromium-specific GLES2 extensions declarations.
 
 #ifndef GPU_GLES2_GL2EXTCHROMIUM_H_
 #define GPU_GLES2_GL2EXTCHROMIUM_H_
 
 #include <GLES2/gl2.h>
@@ skipping 209 matching lines @@
     GLenum target, GLint imageId);
 GL_APICALL void GL_APIENTRY glReleaseTexImage2DCHROMIUM(
     GLenum target, GLint imageId);
 #endif
 typedef void (GL_APIENTRYP PFNGLBINDTEXIMAGE2DCHROMIUMPROC) (
     GLenum target, GLint imageId);
 typedef void (GL_APIENTRYP PFNGLRELEASETEXIMAGE2DCHROMIUMPROC) (
     GLenum target, GLint imageId);
 #endif  /* GL_CHROMIUM_texture_from_image */
 
-/* GL_CHROMIUM_rate_limit_offscreen_context */
-#ifndef GL_CHROMIUM_rate_limit_offscreen_context
-#define GL_CHROMIUM_rate_limit_offscreen_context 1
-#ifdef GL_GLEXT_PROTOTYPES
-GL_APICALL void GL_APIENTRY glRateLimitOffscreenContextCHROMIUM();
-#endif
-typedef void (GL_APIENTRYP PFNGLRATELIMITOFFSCREENCONTEXTCHROMIUMPROC) ();
-#endif  /* GL_CHROMIUM_rate_limit_offscreen_context */
-
 /* GL_CHROMIUM_post_sub_buffer */
 #ifndef GL_CHROMIUM_post_sub_buffer
 #define GL_CHROMIUM_post_sub_buffer 1
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL void GL_APIENTRY glPostSubBufferCHROMIUM(
     GLint x, GLint y, GLint width, GLint height);
 #endif
 typedef void (GL_APIENTRYP PFNGLPOSTSUBBUFFERCHROMIUMPROC) (
     GLint x, GLint y, GLint width, GLint height);
 #endif  /* GL_CHROMIUM_post_sub_buffer */
@@ skipping 745 matching lines @@
 #define GL_PATH_STENCIL_VALUE_MASK_CHROMIUM 0x90B9
 #endif
 
 #endif /* GL_CHROMIUM_path_rendering */
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif  // GPU_GLES2_GL2EXTCHROMIUM_H_