Revert "Revert "Remove dependencies on /media for iOS.""

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 8bf6503759f041614a706826759a00df6844ed14..a0230b0976bb555612275b4fe4783e299c0af20e 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -420,6 +420,7 @@ void BrowserMainLoop::MainMessageLoopStart() {
     network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
   }
 
+#if !defined(OS_IOS)
   {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:MediaFeatures")
     media::InitializeCPUSpecificMediaFeatures();
@@ -432,8 +433,6 @@ void BrowserMainLoop::MainMessageLoopStart() {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:MIDIManager")
     midi_manager_.reset(media::MIDIManager::Create());
   }
-
-#if !defined(OS_IOS)
   {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:ContentWebUIController")
     WebUIControllerFactory::RegisterFactory(