Exposes OrientationChangeEvent.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index bdfed70ed2c1802d448e81f2a7f9377f4f95d712..d5efffea3216eeb25322b12ee2ee8134cc27216f 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -839,6 +839,8 @@ bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
                         OnDisableScrollbarsForSmallWindows)
     IPC_MESSAGE_HANDLER(ViewMsg_SetRendererPrefs, OnSetRendererPrefs)
     IPC_MESSAGE_HANDLER(ViewMsg_MediaPlayerActionAt, OnMediaPlayerActionAt)
+    IPC_MESSAGE_HANDLER(ViewMsg_OrientationChangeEvent,
+                        OnOrientationChangeEvent)
     IPC_MESSAGE_HANDLER(ViewMsg_PluginActionAt, OnPluginActionAt)
     IPC_MESSAGE_HANDLER(ViewMsg_SetActive, OnSetActive)
     IPC_MESSAGE_HANDLER(ViewMsg_SetNavigationStartTime,
@@ -4411,6 +4413,10 @@ void RenderViewImpl::OnMediaPlayerActionAt(const gfx::Point& location,
     webview()->performMediaPlayerAction(action, location);
 }
 
+void RenderViewImpl::OnOrientationChangeEvent(int orientation) {
+  webview()->mainFrame()->sendOrientationChangeEvent(orientation);
+}
+
 void RenderViewImpl::OnPluginActionAt(const gfx::Point& location,
                                       const WebPluginAction& action) {
   if (webview())