command_buffer: Implement CHROMIUM_framebuffer_mixed_samples extension

gpu/command_buffer/service/gles2_cmd_decoder_unittest_0_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 34 matching lines @@
       .Times(1)
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, ClearColor(0.0f, 0.0f, 0.0f, 0.0f))
       .Times(1)
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, ClearDepth(1.0f)).Times(1).RetiresOnSaturation();
   EXPECT_CALL(*gl_, ClearStencil(0)).Times(1).RetiresOnSaturation();
   EXPECT_CALL(*gl_, ColorMask(true, true, true, true))
       .Times(1)
       .RetiresOnSaturation();
+  if (group_->feature_info()
+          ->feature_flags()
+          .chromium_framebuffer_mixed_samples) {
+    EXPECT_CALL(*gl_, CoverageModulationNV(GL_NONE))
+        .Times(1)
+        .RetiresOnSaturation();
+  }
   EXPECT_CALL(*gl_, CullFace(GL_BACK)).Times(1).RetiresOnSaturation();
   EXPECT_CALL(*gl_, DepthFunc(GL_LESS)).Times(1).RetiresOnSaturation();
   EXPECT_CALL(*gl_, DepthMask(true)).Times(1).RetiresOnSaturation();
   EXPECT_CALL(*gl_, DepthRange(0.0f, 1.0f)).Times(1).RetiresOnSaturation();
   EXPECT_CALL(*gl_, FrontFace(GL_CCW)).Times(1).RetiresOnSaturation();
   EXPECT_CALL(*gl_, Hint(GL_GENERATE_MIPMAP_HINT, GL_DONT_CARE))
       .Times(1)
       .RetiresOnSaturation();
   if (group_->feature_info()->feature_flags().oes_standard_derivatives) {
     EXPECT_CALL(*gl_,
@@ skipping 86 matching lines @@
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, StencilOpSeparate(GL_BACK, GL_KEEP, GL_KEEP, GL_KEEP))
       .Times(1)
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_,
               Viewport(kViewportX, kViewportY, kViewportWidth, kViewportHeight))
       .Times(1)
       .RetiresOnSaturation();
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_0_AUTOGEN_H_