|  | // Copyright 2016 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. | 
|  |  | 
|  | #ifndef GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_CLIENT_H_ | 
|  | #define GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_CLIENT_H_ | 
|  |  | 
|  | #include <cstdint> | 
|  |  | 
|  | namespace gpu { | 
|  |  | 
|  | class GpuControlClient { | 
|  | public: | 
|  | // Informs the client that the context was lost. It should inform its own | 
|  | // clients or take actions as needed. This will only be called a single time | 
|  | // for any GpuControl. | 
|  | virtual void OnGpuControlLostContext() = 0; | 
|  | // This may happen inside calls from the client to the GpuControl, so this | 
|  | // function is reentrant. It informs the client of loss, but the client will | 
|  | // also receive a OnGpuControlLostContext (non-re-entrantly) in the future. | 
|  | // Use this only to update internal state if needed to make lost context be | 
|  | // visible immediately while unwinding the call stack. | 
|  | virtual void OnGpuControlLostContextMaybeReentrant() = 0; | 
|  | virtual void OnGpuControlErrorMessage(const char* message, int32_t id) = 0; | 
|  | }; | 
|  |  | 
|  | }  // namespace gpu | 
|  |  | 
|  | #endif  // GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_CLIENT_H_ |