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

gpu/command_buffer/client/gles2_interface_autogen.h

Index: gpu/command_buffer/client/gles2_interface_autogen.h
diff --git a/gpu/command_buffer/client/gles2_interface_autogen.h b/gpu/command_buffer/client/gles2_interface_autogen.h
index 65724af58239a75300b32d1f00e01dd8ebaf2699..07a371554ba2d1879350e62b2c3c0c9d3a49c9a2 100644
--- a/gpu/command_buffer/client/gles2_interface_autogen.h
+++ b/gpu/command_buffer/client/gles2_interface_autogen.h
@@ -732,6 +732,9 @@ virtual void BindUniformLocationCHROMIUM(GLuint program,
                                          GLint location,
                                          const char* name) = 0;
 virtual void BindTexImage2DCHROMIUM(GLenum target, GLint imageId) = 0;
+virtual void BindTexImage2DWithInternalformatCHROMIUM(GLenum target,
+                                                      GLenum internalformat,
+                                                      GLint imageId) = 0;
 virtual void ReleaseTexImage2DCHROMIUM(GLenum target, GLint imageId) = 0;
 virtual void TraceBeginCHROMIUM(const char* category_name,
                                 const char* trace_name) = 0;