Use IPC::Sender and IPC::Listener in content.

content/browser/device_orientation/message_filter.cc

Index: content/browser/device_orientation/message_filter.cc
diff --git a/content/browser/device_orientation/message_filter.cc b/content/browser/device_orientation/message_filter.cc
index e1bbf3cd3258239608ffc5a554d9df024c558c7a..9897aa701fcce04e23cb33dac84fce28244a3654 100644
--- a/content/browser/device_orientation/message_filter.cc
+++ b/content/browser/device_orientation/message_filter.cc
@@ -29,7 +29,7 @@ class MessageFilter::ObserverDelegate
     // Will stop observing provider when destructed.
     ObserverDelegate(Provider* provider,
                      int render_view_id,
-                     IPC::Message::Sender* sender);
+                     IPC::Sender* sender);
 
     // From Provider::Observer.
     virtual void OnOrientationUpdate(const Orientation& orientation);
@@ -40,14 +40,14 @@ class MessageFilter::ObserverDelegate
 
   scoped_refptr<Provider> provider_;
   int render_view_id_;
-  IPC::Message::Sender* sender_;  // Weak pointer.
+  IPC::Sender* sender_;  // Weak pointer.
 
   DISALLOW_COPY_AND_ASSIGN(ObserverDelegate);
 };
 
 MessageFilter::ObserverDelegate::ObserverDelegate(Provider* provider,
                                                   int render_view_id,
-                                                  IPC::Message::Sender* sender)
+                                                  IPC::Sender* sender)
     : provider_(provider),
       render_view_id_(render_view_id),
       sender_(sender) {