Fix blits from multisampled renderbuffers to alpha:false WebGL back buffer.

gpu/command_buffer/client/gles2_interface_stub_impl_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 947 matching lines @@
 GLuint GLES2InterfaceStub::CreateAndConsumeTextureCHROMIUM(
     GLenum /* target */,
     const GLbyte* /* mailbox */) {
   return 0;
 }
 void GLES2InterfaceStub::BindUniformLocationCHROMIUM(GLuint /* program */,
                                                      GLint /* location */,
                                                      const char* /* name */) {}
 void GLES2InterfaceStub::BindTexImage2DCHROMIUM(GLenum /* target */,
                                                 GLint /* imageId */) {}
+void GLES2InterfaceStub::BindTexImage2DWithInternalformatCHROMIUM(
+    GLenum /* target */,
+    GLenum /* internalformat */,
+    GLint /* imageId */) {}
 void GLES2InterfaceStub::ReleaseTexImage2DCHROMIUM(GLenum /* target */,
                                                    GLint /* imageId */) {}
 void GLES2InterfaceStub::TraceBeginCHROMIUM(const char* /* category_name */,
                                             const char* /* trace_name */) {}
 void GLES2InterfaceStub::TraceEndCHROMIUM() {}
 void GLES2InterfaceStub::DiscardFramebufferEXT(
     GLenum /* target */,
     GLsizei /* count */,
     const GLenum* /* attachments */) {}
 void GLES2InterfaceStub::LoseContextCHROMIUM(GLenum /* current */,
@@ skipping 204 matching lines @@
     GLint /* display_y */) {}
 void GLES2InterfaceStub::SwapBuffersWithBoundsCHROMIUM(
     GLsizei /* count */,
     const GLint* /* rects */) {}
 void GLES2InterfaceStub::SetDrawRectangleCHROMIUM(GLint /* x */,
                                                   GLint /* y */,
                                                   GLint /* width */,
                                                   GLint /* height */) {}
 void GLES2InterfaceStub::SetEnableDCLayersCHROMIUM(GLboolean /* enabled */) {}
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_STUB_IMPL_AUTOGEN_H_