gpu: Add a new extension CHROMIUM_deschedule.

gpu/command_buffer/client/gles2_interface_autogen.h

 // Copyright 2014 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 is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 659 matching lines @@
 virtual GLuint CreateImageCHROMIUM(ClientBuffer buffer,
                                    GLsizei width,
                                    GLsizei height,
                                    GLenum internalformat) = 0;
 virtual void DestroyImageCHROMIUM(GLuint image_id) = 0;
 virtual GLuint CreateGpuMemoryBufferImageCHROMIUM(GLsizei width,
                                                   GLsizei height,
                                                   GLenum internalformat,
                                                   GLenum usage) = 0;
 virtual void GetImageivCHROMIUM(GLuint image_id, GLenum param, GLint* data) = 0;
+virtual void DescheduleUntilFinishedCHROMIUM() = 0;
 virtual void GetTranslatedShaderSourceANGLE(GLuint shader,
                                             GLsizei bufsize,
                                             GLsizei* length,
                                             char* source) = 0;
 virtual void PostSubBufferCHROMIUM(GLint x,
                                    GLint y,
                                    GLint width,
                                    GLint height) = 0;
 virtual void TexImageIOSurface2DCHROMIUM(GLenum target,
                                          GLsizei width,
@@ skipping 187 matching lines @@
                                             const char* name) = 0;
 virtual void BindFragDataLocationEXT(GLuint program,
                                      GLuint colorNumber,
                                      const char* name) = 0;
 virtual GLint GetFragDataIndexEXT(GLuint program, const char* name) = 0;
 virtual void UniformMatrix4fvStreamTextureMatrixCHROMIUM(
     GLint location,
     GLboolean transpose,
     const GLfloat* default_value) = 0;
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_AUTOGEN_H_