AsyncPixelTransferCompletionObserver 11 gpu/command_buffer/service/async_pixel_transfer_manager.cc AsyncPixelTransferCompletionObserver::AsyncPixelTransferCompletionObserver() {} AsyncPixelTransferCompletionObserver 13 gpu/command_buffer/service/async_pixel_transfer_manager.cc AsyncPixelTransferCompletionObserver::~AsyncPixelTransferCompletionObserver() {}