gpu: Introduce GpuInit.

gpu/ipc/service/gpu_init.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_H_
+#define GPU_IPC_SERVICE_GPU_INIT_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "gpu/config/gpu_info.h"
+#include "gpu/gpu_export.h"
+
+namespace base {
+class CommandLine;
+}
+
+namespace gpu {
+
+class GpuWatchdogThread;
+
+class GPU_EXPORT GpuSandboxHelper {
+ public:
+  virtual ~GpuSandboxHelper() {}
+
+  virtual void PreSandboxStartup() = 0;
+
+  virtual bool EnsureSandboxInitialized() = 0;
+};
+
+class GPU_EXPORT GpuInit {
+ public:
+  GpuInit();
+  ~GpuInit();
+
+  void set_sandbox_helper(GpuSandboxHelper* helper) {
+    sandbox_helper_ = helper;
+  }
+
+  bool InitializeAndStartSandbox(const base::CommandLine& command_line);
+
+  const GPUInfo& gpu_info() const { return gpu_info_; }
+  GpuWatchdogThread* watchdog_thread() { return watchdog_thread_.get(); }
+
+ private:
+  GpuSandboxHelper* sandbox_helper_ = nullptr;
+  scoped_refptr<GpuWatchdogThread> watchdog_thread_;
+  GPUInfo gpu_info_;
+
+  DISALLOW_COPY_AND_ASSIGN(GpuInit);
+};
+
+}  // namespace gpu
+
+#endif  // GPU_IPC_SERVICE_GPU_INIT_H_