Revert of Screen.orientation lock API implementation for Windows8 and later.

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 6f8e9632a429e53c5652e3e28a6b6bfe04893876..eaf526c1dc4d665e8c011a5b6fdf6771a5488682 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -154,8 +154,6 @@
 #include <shellapi.h>
 
 #include "base/memory/memory_pressure_monitor_win.h"
-#include "base/win/windows_version.h"
-#include "content/browser/screen_orientation/screen_orientation_delegate_win.h"
 #include "content/common/sandbox_win.h"
 #include "net/base/winsock_init.h"
 #include "ui/base/l10n/l10n_util_win.h"
@@ -737,11 +735,6 @@ void BrowserMainLoop::PostMainMessageLoopStart() {
         BrowserThread::GetTaskRunnerForThread(BrowserThread::UI));
   }
 
-#if defined(OS_WIN)
-  if (base::win::GetVersion() >= base::win::VERSION_WIN8)
-    screen_orientation_delegate_.reset(new ScreenOrientationDelegateWin());
-#endif
-
   // Only use discardable_memory::DiscardableSharedMemoryManager when Chrome is
   // not running in mus+ash.
   if (!service_manager::ServiceManagerIsRemote()) {