Revert r151669 and r155589 as non-Aura Metro mode is gone

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 f1a801b85b744dd5dd7fe76d0b181201709c261c..04d8ad8b2c40aa5c8dd5c2f126f96a268d22edb7 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -82,7 +82,6 @@
 #include <commctrl.h>
 #include <shellapi.h>
 
-#include "base/win/text_services_message_filter.h"
 #include "content/browser/system_message_window_win.h"
 #include "content/common/sandbox_win.h"
 #include "net/base/winsock_init.h"
@@ -501,17 +500,6 @@ void BrowserMainLoop::MainMessageLoopStart() {
 
 #if defined(OS_WIN)
   system_message_window_.reset(new SystemMessageWindowWin);
-
-  if (base::win::IsTSFAwareRequired()) {
-    // Create a TSF message filter for the message loop. MessageLoop takes
-    // ownership of the filter.
-    scoped_ptr<base::win::TextServicesMessageFilter> tsf_message_filter(
-      new base::win::TextServicesMessageFilter);
-    if (tsf_message_filter->Init()) {
-      base::MessageLoopForUI::current()->SetMessageFilter(
-        tsf_message_filter.PassAs<base::MessageLoopForUI::MessageFilter>());
-    }
-  }
 #endif
 
   if (parts_)