[Mac] Enable AppNap for renderers

content/child/child_thread_impl.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_impl.h"
 
 #include <signal.h>
 #include <string>
 #include <utility>
 
@@ skipping 62 matching lines @@
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "services/service_manager/runner/common/client_util.h"
 
 #if defined(OS_POSIX)
 #include "base/posix/global_descriptors.h"
 #include "content/public/common/content_descriptors.h"
 #endif
 
 #if defined(OS_MACOSX)
 #include "base/allocator/allocator_interception_mac.h"
+#include "base/process/process.h"
+#include "content/common/mac/app_nap_activity.h"
 #endif
 
 using tracked_objects::ThreadData;
 
 namespace content {
 namespace {
 
 // How long to wait for a connection to the browser process before giving up.
 const int kConnectionTimeoutS = 15;
 
@@ skipping 463 matching lines @@
     if (base::StringToInt(connection_override, &temp))
       connection_timeout = temp;
   }
 
 #if defined(OS_MACOSX)
   if (base::CommandLine::InitializedForCurrentProcess() &&
       base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableHeapProfiling)) {
     base::allocator::PeriodicallyShimNewMallocZones();
   }
+  if (base::Process::IsAppNapEnabled()) {
+    app_nap_activity_.reset(new AppNapActivity());
+    app_nap_activity_->Begin();
+  };
 #endif
 
   message_loop_->task_runner()->PostDelayedTask(
       FROM_HERE, base::Bind(&ChildThreadImpl::EnsureConnected,
                             channel_connected_factory_->GetWeakPtr()),
       base::TimeDelta::FromSeconds(connection_timeout));
 
 #if defined(OS_ANDROID)
   g_quit_closure.Get().BindToMainThread();
 #endif
@@ skipping 174 matching lines @@
 bool ChildThreadImpl::OnControlMessageReceived(const IPC::Message& msg) {
   return false;
 }
 
 void ChildThreadImpl::OnProcessBackgrounded(bool backgrounded) {
   // Set timer slack to maximum on main thread when in background.
   base::TimerSlack timer_slack = base::TIMER_SLACK_NONE;
   if (backgrounded)
     timer_slack = base::TIMER_SLACK_MAXIMUM;
   base::MessageLoop::current()->SetTimerSlack(timer_slack);
+#if defined(OS_MACOSX)
+  if (base::Process::IsAppNapEnabled()) {
+    if (backgrounded) {
+      app_nap_activity_->End();
+    } else {
+      app_nap_activity_->Begin();
+    }
+  }
+#endif  // defined(OS_MACOSX)
 }
 
 void ChildThreadImpl::OnProcessPurgeAndSuspend() {
 }
 
 void ChildThreadImpl::OnProcessResume() {}
 
 void ChildThreadImpl::OnShutdown() {
   base::MessageLoop::current()->QuitWhenIdle();
 }
@@ skipping 71 matching lines @@
   Listener* route = router_.GetRoute(routing_id);
   if (route)
     route->OnAssociatedInterfaceRequest(name, request.PassHandle());
 }
 
 bool ChildThreadImpl::IsInBrowserProcess() const {
   return static_cast<bool>(browser_process_io_runner_);
 }
 
 }  // namespace content