gpu: Introduce GpuInit.

gpu/ipc/service/gpu_init_delegate.h

+// 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_IPC_SERVICE_GPU_INIT_DELEGATE_H_
+#define GPU_IPC_SERVICE_GPU_INIT_DELEGATE_H_
+
+#include "base/macros.h"
+
+namespace base {
+class Time;
+}
+
+namespace gpu {
+
+class GpuMemoryBufferFactory;
+class GpuWatchdogThread;
+struct GPUInfo;
+
+struct GpuInitLogMessage {
+  int severity;
+  std::string header;
+  std::string message;
+};
+
+class GpuInitDelegate {
+ public:
+  virtual ~GpuInitDelegate() {}
+
+  // Can be called more than once, as more info is collected.
+  virtual void OnGpuInfoUpdate(const GPUInfo& info) = 0;
+  virtual void OnGpuWatchdogThreadCreated(GpuWatchdogThread* thread) = 0;
+  virtual void OnGpuWatchdogThreadDestroyed() = 0;
+
+  virtual bool ShouldInitializeGL() = 0;
+  virtual void WaitForDebugger() = 0;
+  virtual void PreSandboxInitialization() = 0;
+  virtual bool ShouldStartSandboxEarly() = 0;
+  virtual void WarmUpSandbox() = 0;
+  virtual bool StartSandbox() = 0;
+  virtual void InitializeMessageLoop() = 0;
+  virtual void Initialize(base::Time start_time,
+                          bool dead_on_arrival,
+                          std::vector<GpuInitLogMessage> init_log_messages,
+                          GpuMemoryBufferFactory* gpu_buffer_factory) = 0;
+};
+
+}  // namespace gpu
+
+#endif  // GPU_IPC_SERVICE_GPU_INIT_DELEGATE_H_