gpu: Remove Create/DeleteImage IPC by adding an X11_PIXMAP_BUFFER GpuMemoryBuffer type.

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 94bf3aa27f8d154bdc05b757872b47c8d61e4a2e..a88665ab65f1cfa3870e853f58f91b65f032b9fb 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_mock.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_mock.h
@@ -72,6 +72,7 @@ class MockGLES2Decoder : public GLES2Decoder {
   MOCK_CONST_METHOD0(RestoreAllAttributes, void());
   MOCK_METHOD0(GetQueryManager, gpu::gles2::QueryManager*());
   MOCK_METHOD0(GetVertexArrayManager, gpu::gles2::VertexArrayManager*());
+  MOCK_METHOD0(GetImageManager, gpu::gles2::ImageManager*());
   MOCK_METHOD1(
       SetResizeCallback, void(const base::Callback<void(gfx::Size, float)>&));
   MOCK_METHOD0(GetAsyncPixelTransferDelegate,