Screen.orientation lock API implementation for Windows8 and later.

content/browser/browser_main_loop.h

Index: content/browser/browser_main_loop.h
diff --git a/content/browser/browser_main_loop.h b/content/browser/browser_main_loop.h
index ef28a62b8a43e02f0d9c00ed70310ef1e6b03a52..e8a13a03881eade85aebfe139c293b58d3e7afb6 100644
--- a/content/browser/browser_main_loop.h
+++ b/content/browser/browser_main_loop.h
@@ -71,6 +71,8 @@ struct MainFunctionParams;
 
 #if defined(OS_ANDROID)
 class ScreenOrientationDelegate;
+#elif defined(OS_WIN)
+class ScreenOrientationDelegate;
 #endif
 
 // Implements the main browser loop stages called from BrowserMainRunner.
@@ -199,6 +201,10 @@ class CONTENT_EXPORT BrowserMainLoop {
   scoped_ptr<base::trace_event::TraceEventSystemStatsMonitor>
       system_stats_monitor_;
 
+#if defined(OS_WIN)
+  scoped_ptr<ScreenOrientationDelegate> screen_orientation_delegate_;
+#endif
+
 #if defined(OS_ANDROID)
   // Android implementation of ScreenOrientationDelegate
   scoped_ptr<ScreenOrientationDelegate> screen_orientation_delegate_;