Minimal if-def changes for OS_IOS in browser_main_loop.*

content/browser/browser_main_loop.cc

Index: content/browser/browser_main_loop.cc
diff --git a/content/browser/browser_main_loop.cc b/content/browser/browser_main_loop.cc
index faed5fc5c27350c10c45ba7767c8ff593cf45967..583ac66ab2f5804cc82532d5fdad2ca3dbb54c65 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -296,6 +296,7 @@ void BrowserMainLoop::EarlyInitialization() {
   if (parsed_command_line_.HasSwitch(switches::kEnableTcpFastOpen))
     net::set_tcp_fastopen_enabled(true);
 
+#if !defined(OS_IOS)
   if (parsed_command_line_.HasSwitch(switches::kRendererProcessLimit)) {
     std::string limit_string = parsed_command_line_.GetSwitchValueASCII(
         switches::kRendererProcessLimit);
@@ -304,6 +305,7 @@ void BrowserMainLoop::EarlyInitialization() {
       content::RenderProcessHost::SetMaxRendererProcessCount(process_limit);
     }
   }
+#endif  // !defined(OS_IOS)
 
   if (parts_.get())
     parts_->PostEarlyInitialization();
@@ -328,16 +330,18 @@ void BrowserMainLoop::MainMessageLoopStart() {
 
   InitializeMainThread();
 
+  system_monitor_.reset(new base::SystemMonitor);
+  hi_res_timer_manager_.reset(new HighResolutionTimerManager);
+  network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
+  audio_manager_.reset(media::AudioManager::Create());
+
+#if !defined(OS_IOS)
   // Start tracing to a file if needed.
   if (base::debug::TraceLog::GetInstance()->IsEnabled()) {
     TraceControllerImpl::GetInstance()->InitStartupTracing(
         parsed_command_line_);
   }
 
-  system_monitor_.reset(new base::SystemMonitor);
-  hi_res_timer_manager_.reset(new HighResolutionTimerManager);
-  network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
-  audio_manager_.reset(media::AudioManager::Create());
   online_state_observer_.reset(new BrowserOnlineStateObserver);
   scoped_refptr<media_stream::AudioInputDeviceManager>
       audio_input_device_manager(
@@ -347,15 +351,16 @@ void BrowserMainLoop::MainMessageLoopStart() {
   media_stream_manager_.reset(new media_stream::MediaStreamManager(
       audio_input_device_manager, video_capture_manager));
 
-#if defined(OS_WIN)
-  system_message_window_.reset(new SystemMessageWindowWin);
-#endif
-
   // Prior to any processing happening on the io thread, we create the
   // plugin service as it is predominantly used from the io thread,
   // but must be created on the main thread. The service ctor is
   // inexpensive and does not invoke the io_thread() accessor.
   PluginService::GetInstance()->Init();
+#endif  // !defined(OS_IOS)
+
+#if defined(OS_WIN)
+  system_message_window_.reset(new SystemMessageWindowWin);
+#endif
 
   if (parts_.get())
     parts_->PostMainMessageLoopStart();
@@ -428,8 +433,10 @@ void BrowserMainLoop::CreateThreads() {
     BrowserThread::ID id = static_cast<BrowserThread::ID>(thread_id);
 
     if (thread_id == BrowserThread::WEBKIT_DEPRECATED) {
+#if !defined(OS_IOS)
       webkit_thread_.reset(new WebKitThread);
       webkit_thread_->Initialize();
+#endif
     } else if (thread_to_start) {
       (*thread_to_start).reset(new BrowserProcessSubThread(id));
       (*thread_to_start)->StartWithOptions(*options);
@@ -443,6 +450,7 @@ void BrowserMainLoop::CreateThreads() {
   if (parts_.get())
     parts_->PreMainMessageLoopRun();
 
+#if !defined(OS_IOS)
   // When running the GPU thread in-process, avoid optimistically starting it
   // since creating the GPU thread races against creation of the one-and-only
   // ChildProcess instance which is created by the renderer thread.
@@ -458,6 +466,7 @@ void BrowserMainLoop::CreateThreads() {
             GpuProcessHost::GPU_PROCESS_KIND_SANDBOXED,
             content::CAUSE_FOR_GPU_LAUNCH_BROWSER_STARTUP));
   }
+#endif  // !defined(OS_IOS)
 
   // If the UI thread blocks, the whole UI is unresponsive.
   // Do not allow disk IO from the UI thread.
@@ -490,6 +499,7 @@ void BrowserMainLoop::ShutdownThreadsAndCleanUp() {
   if (parts_.get())
     parts_->PostMainMessageLoopRun();
 
+#if !defined(OS_IOS)
   // Destroying the GpuProcessHostUIShims on the UI thread posts a task to
   // delete related objects on the GPU thread. This must be done before
   // stopping the GPU thread. The GPU thread will close IPC channels to renderer
@@ -517,6 +527,7 @@ void BrowserMainLoop::ShutdownThreadsAndCleanUp() {
 #elif defined(OS_MACOSX)
   device_monitor_mac_.reset();
 #endif
+#endif  // !defined(OS_IOS)
 
   // Must be size_t so we can subtract from it.
   for (size_t thread_id = BrowserThread::ID_COUNT - 1;
@@ -564,12 +575,14 @@ void BrowserMainLoop::ShutdownThreadsAndCleanUp() {
       case BrowserThread::FILE:
         thread_to_stop = &file_thread_;
 
+#if !defined(OS_IOS)
         // Clean up state that lives on or uses the file_thread_ before
         // it goes away.
         if (resource_dispatcher_host_.get()) {
           resource_dispatcher_host_.get()->download_file_manager()->Shutdown();
           resource_dispatcher_host_.get()->save_file_manager()->Shutdown();
         }
+#endif  // !defined(OS_IOS)
         break;
       case BrowserThread::PROCESS_LAUNCHER:
         thread_to_stop = &process_launcher_thread_;
@@ -590,7 +603,9 @@ void BrowserMainLoop::ShutdownThreadsAndCleanUp() {
     BrowserThread::ID id = static_cast<BrowserThread::ID>(thread_id);
 
     if (id == BrowserThread::WEBKIT_DEPRECATED) {
+#if !defined(OS_IOS)
       webkit_thread_.reset();
+#endif
     } else if (thread_to_stop) {
       thread_to_stop->reset();
     } else {
@@ -623,6 +638,7 @@ void BrowserMainLoop::InitializeMainThread() {
 
 
 void BrowserMainLoop::BrowserThreadsStarted() {
+#if !defined(OS_IOS)
   HistogramSynchronizer::GetInstance();
 
   content::BrowserGpuChannelHostFactory::Initialize();
@@ -639,13 +655,14 @@ void BrowserMainLoop::BrowserThreadsStarted() {
   // RDH needs the IO thread to be created.
   resource_dispatcher_host_.reset(new ResourceDispatcherHostImpl());
 
-#if defined(ENABLE_INPUT_SPEECH)
-  speech_recognition_manager_.reset(new speech::SpeechRecognitionManagerImpl());
-#endif
-
   // Start the GpuDataManager before we set up the MessageLoops because
   // otherwise we'll trigger the assertion about doing IO on the UI thread.
   content::GpuDataManager::GetInstance();
+#endif  // !OS_IOS
+
+#if defined(ENABLE_INPUT_SPEECH)
+  speech_recognition_manager_.reset(new speech::SpeechRecognitionManagerImpl());
+#endif
 }
 
 void BrowserMainLoop::InitializeToolkit() {