Remove native_control* and some other non-Aura windows code

ui/views/win/hwnd_message_handler.h

Index: ui/views/win/hwnd_message_handler.h
diff --git a/ui/views/win/hwnd_message_handler.h b/ui/views/win/hwnd_message_handler.h
index 581e82a5b79895c7e3a250f8d044b27c25be5c82..bf83ef870f9caa1f8bba525c848def568c07a8c7 100644
--- a/ui/views/win/hwnd_message_handler.h
+++ b/ui/views/win/hwnd_message_handler.h
@@ -108,8 +108,7 @@ const int WM_NCUAHDRAWFRAME = 0xAF;
 // TODO(beng): This object should eventually *become* the WindowImpl.
 class VIEWS_EXPORT HWNDMessageHandler :
     public gfx::WindowImpl,
-    public internal::InputMethodDelegate,
-    public base::MessageLoopForUI::Observer {
+    public internal::InputMethodDelegate {
  public:
   explicit HWNDMessageHandler(HWNDMessageHandlerDelegate* delegate);
   ~HWNDMessageHandler();
@@ -209,11 +208,6 @@ class VIEWS_EXPORT HWNDMessageHandler :
                             WPARAM w_param,
                             LPARAM l_param) OVERRIDE;
 
-  // Overridden from MessageLoopForUI::Observer:
-  virtual base::EventStatus WillProcessEvent(
-      const base::NativeEvent& event) OVERRIDE;
-  virtual void DidProcessEvent(const base::NativeEvent& event) OVERRIDE;
-
   // Returns the auto-hide edges of the appbar. See Appbar::GetAutohideEdges()
   // for details. If the edges change OnAppbarAutohideEdgesChanged() is called.
   int GetAppbarAutohideEdges(HMONITOR monitor);
@@ -277,9 +271,6 @@ class VIEWS_EXPORT HWNDMessageHandler :
   // Stops ignoring SetWindowPos() requests (see below).
   void StopIgnoringPosChanges() { ignore_window_pos_changes_ = false; }
 
-  // Synchronously paints the invalid contents of the Widget.
-  void RedrawInvalidRect();
-
   // Synchronously updates the invalid contents of the Widget. Valid for
   // layered windows only.
   void RedrawLayeredWindowContents();