command_buffer: Implement CHROMIUM_framebuffer_mixed_samples extension

ui/gl/gl_mock_autogen_gl.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
 // ui/gl/generate_bindings.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 159 matching lines @@
 MOCK_METHOD9(CopyTexSubImage3D,
              void(GLenum target,
                   GLint level,
                   GLint xoffset,
                   GLint yoffset,
                   GLint zoffset,
                   GLint x,
                   GLint y,
                   GLsizei width,
                   GLsizei height));
+MOCK_METHOD1(CoverageModulationNV, void(GLenum components));
 MOCK_METHOD7(CoverFillPathInstancedNV,
              void(GLsizei numPaths,
                   GLenum pathNameType,
                   const void* paths,
                   GLuint pathBase,
                   GLenum coverMode,
                   GLenum transformType,
                   const GLfloat* transformValues));
 MOCK_METHOD2(CoverFillPathNV, void(GLuint path, GLenum coverMode));
 MOCK_METHOD7(CoverStrokePathInstancedNV,
@@ skipping 624 matching lines @@
                   const void* ptr));
 MOCK_METHOD6(VertexAttribPointer,
              void(GLuint indx,
                   GLint size,
                   GLenum type,
                   GLboolean normalized,
                   GLsizei stride,
                   const void* ptr));
 MOCK_METHOD4(Viewport, void(GLint x, GLint y, GLsizei width, GLsizei height));
 MOCK_METHOD3(WaitSync, GLenum(GLsync sync, GLbitfield flags, GLuint64 timeout));