Created multi-process-friendly PowerMonitor interface.

content/child/child_thread.cc

 // 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.
 
 #include "content/child/child_thread.h"
 
 #include "base/allocator/allocator_extension.h"
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop.h"
 #include "base/process/kill.h"
 #include "base/process/process_handle.h"
 #include "base/strings/string_util.h"
 #include "base/threading/thread_local.h"
 #include "base/tracked_objects.h"
 #include "components/tracing/child_trace_message_filter.h"
 #include "content/child/child_histogram_message_filter.h"
 #include "content/child/child_process.h"
 #include "content/child/child_resource_message_filter.h"
 #include "content/child/fileapi/file_system_dispatcher.h"
+#include "content/child/power_monitor_broadcast_source.h"
 #include "content/child/quota_dispatcher.h"
 #include "content/child/quota_message_filter.h"
 #include "content/child/resource_dispatcher.h"
 #include "content/child/socket_stream_dispatcher.h"
 #include "content/child/thread_safe_sender.h"
 #include "content/common/child_process_messages.h"
 #include "content/public/common/content_switches.h"
 #include "ipc/ipc_logging.h"
 #include "ipc/ipc_switches.h"
 #include "ipc/ipc_sync_channel.h"
@@ skipping 116 matching lines @@
   quota_dispatcher_.reset(new QuotaDispatcher(thread_safe_sender_.get(),
                                               quota_message_filter_.get()));
 
   channel_->AddFilter(histogram_message_filter_.get());
   channel_->AddFilter(sync_message_filter_.get());
   channel_->AddFilter(new tracing::ChildTraceMessageFilter(
       ChildProcess::current()->io_message_loop_proxy()));
   channel_->AddFilter(resource_message_filter_.get());
   channel_->AddFilter(quota_message_filter_.get());
 
+  scoped_ptr<PowerMonitorBroadcastSource> power_monitor_source(
+      new PowerMonitorBroadcastSource(message_loop_->message_loop_proxy()));

[jam, 2013/07/31 17:27:17]

nit: no need to pass message_loop_ here, PowerMonitorBroadcastSource should just
do MessageLoopProxy::current()

+  channel_->AddFilter(power_monitor_source->GetMessageFilter());
+
+  power_monitor_.reset(new base::PowerMonitor(
+      power_monitor_source.PassAs<base::PowerMonitorSource>()));
+
+  hi_res_timer_manager_.reset(new base::HighResolutionTimerManager);
+
 #if defined(OS_POSIX)
   // Check that --process-type is specified so we don't do this in unit tests
   // and single-process mode.
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kProcessType))
     channel_->AddFilter(new SuicideOnChannelErrorFilter());
 #endif
 
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTraceToConsole)) {
     std::string category_string =
         CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
@@ skipping 244 matching lines @@
   // inflight that would addref it.
   Send(new ChildProcessHostMsg_ShutdownRequest);
 }
 
 void ChildThread::EnsureConnected() {
   LOG(INFO) << "ChildThread::EnsureConnected()";
   base::KillProcess(base::GetCurrentProcessHandle(), 0, false);
 }
 
 }  // namespace content