Connect up --disable-gl-multisampling to command buffer

gpu/command_buffer/service/gles2_cmd_decoder_mock.h

Index: gpu/command_buffer/service/gles2_cmd_decoder_mock.h
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_mock.h b/gpu/command_buffer/service/gles2_cmd_decoder_mock.h
index 02827091f7c3a6826812fefd5c5fd56879a13bdd..37a7e72af43cd01cd78e7e6fa061d289ea3ea6fe 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_mock.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_mock.h
@@ -25,12 +25,14 @@ class MockGLES2Decoder : public GLES2Decoder {
   MockGLES2Decoder();
   virtual ~MockGLES2Decoder();
 
-  MOCK_METHOD6(Initialize, bool(gfx::GLContext* context,
-                                const gfx::Size& size,
-                                const char* allowed_extensions,
-                                const std::vector<int32>& attribs,
-                                GLES2Decoder* parent,
-                                uint32 parent_texture_id));
+  MOCK_METHOD7(Initialize,
+               bool(gfx::GLContext* context,
+                    const gfx::Size& size,
+                    const DisallowedExtensions& disallowed_extensions,
+                    const char* allowed_extensions,
+                    const std::vector<int32>& attribs,
+                    GLES2Decoder* parent,
+                    uint32 parent_texture_id));
   MOCK_METHOD0(Destroy, void());
   MOCK_METHOD1(ResizeOffscreenFrameBuffer, void(const gfx::Size& size));
   MOCK_METHOD0(UpdateOffscreenFrameBufferSize, bool());