chrome power profiler chrome side changes

content/browser/power_profiler/devtools_power_profiler_host.h

+// Copyright 2013 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 CONTENT_BROWSER_DEVTOOLS_POWER_PROFILER_HOST_H_
+#define CONTENT_BROWSER_DEVTOOLS_POWER_PROFILER_HOST_H_
+
+#include "base/basictypes.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/values.h"
+#include "content/browser/power_profiler/power_profiler_host.h"
+
+#if defined(OS_WIN)
+#define ENABLE_POWER_PROFILER 1
+#else
+#undef ENABLE_POWER_PROFILE
+#endif  // !OS_WIN
+
+namespace content {
+
+class DevToolsFrontendHost;
+class WeakPtr;
+
+// A class used to monitor the power usage and tell profiler the power data
+class DevToolsPowerProfilerHost : public PowerProfilerHost {
+ public:
+  DevToolsPowerProfilerHost(const base::WeakPtr<DevToolsFrontendHost>& host);
+  ~DevToolsPowerProfilerHost() {}
+  virtual void Send(PowerEvent*, int);
+
+  virtual bool Register() OVERRIDE;
+
+ private:
+  void SendWrapper(const std::string& message);
+  double convertMonotonicTimeToWallTime(base::TimeTicks&);
+  void convertPowerValueToJSONObject(base::DictionaryValue*, PowerEvent*);
+  base::WeakPtr<DevToolsFrontendHost> frontend_host_;
+  double reference_wall_time_;
+  base::TimeTicks reference_monotonic_time_;
+  DISALLOW_COPY_AND_ASSIGN(DevToolsPowerProfilerHost);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_DEVTOOLS_POWER_PROFILER_HOST_H_