command_buffer: Implement CHROMIUM_framebuffer_mixed_samples extension

mojo/gpu/mojo_gles2_impl_autogen.cc

 // 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 1879 matching lines @@
 }
 void MojoGLES2Impl::ProgramPathFragmentInputGenCHROMIUM(GLuint program,
                                                         GLint location,
                                                         GLenum genMode,
                                                         GLint components,
                                                         const GLfloat* coeffs) {
   MojoGLES2MakeCurrent(context_);
   glProgramPathFragmentInputGenCHROMIUM(program, location, genMode, components,
                                         coeffs);
 }
+void MojoGLES2Impl::CoverageModulationCHROMIUM(GLenum components) {
+  MojoGLES2MakeCurrent(context_);
+  glCoverageModulationCHROMIUM(components);
+}
 GLenum MojoGLES2Impl::GetGraphicsResetStatusKHR() {
   MojoGLES2MakeCurrent(context_);
   return glGetGraphicsResetStatusKHR();
 }
 void MojoGLES2Impl::BlendBarrierKHR() {
   MojoGLES2MakeCurrent(context_);
   glBlendBarrierKHR();
 }
 void MojoGLES2Impl::ApplyScreenSpaceAntialiasingCHROMIUM() {
   MojoGLES2MakeCurrent(context_);
@@ skipping 11 matching lines @@
                                             const char* name) {
   MojoGLES2MakeCurrent(context_);
   glBindFragDataLocationEXT(program, colorNumber, name);
 }
 GLint MojoGLES2Impl::GetFragDataIndexEXT(GLuint program, const char* name) {
   MojoGLES2MakeCurrent(context_);
   return glGetFragDataIndexEXT(program, name);
 }
 
 }  // namespace mojo