Created multi-process-friendly PowerMonitor interface.

content/child/child_thread.h

 // Copyright (c) 2012 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_CHILD_CHILD_THREAD_H_
 #define CONTENT_CHILD_CHILD_THREAD_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "base/memory/weak_ptr.h"
+#include "base/power_monitor/power_monitor.h"
 #include "base/tracked_objects.h"
 #include "content/common/content_export.h"
 #include "content/common/message_router.h"
 #include "ipc/ipc_message.h"  // For IPC_MESSAGE_LOG_ENABLED.
 #include "webkit/child/resource_loader_bridge.h"
 
 namespace base {
 class MessageLoop;
 
 namespace debug {
@@ skipping 172 matching lines @@
   scoped_refptr<ChildResourceMessageFilter> resource_message_filter_;
 
   scoped_refptr<QuotaMessageFilter> quota_message_filter_;
 
   base::WeakPtrFactory<ChildThread> channel_connected_factory_;
 
   // Observes the trace event system. When tracing is enabled, optionally
   // starts profiling the tcmalloc heap.
   scoped_ptr<base::debug::TraceMemoryController> trace_memory_controller_;
 
+  scoped_ptr<base::PowerMonitor> power_monitor_;
+
   DISALLOW_COPY_AND_ASSIGN(ChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_CHILD_THREAD_H_