Refactoring the ownership of ui::InputMethod.

ui/views/widget/desktop_aura/desktop_native_widget_aura.h

Index: ui/views/widget/desktop_aura/desktop_native_widget_aura.h
diff --git a/ui/views/widget/desktop_aura/desktop_native_widget_aura.h b/ui/views/widget/desktop_aura/desktop_native_widget_aura.h
index e92aa8404a80f5d75ec41cab3b3d87c343f0d601..8617e27e2c952acbf0675282eb7db0696e92fdde 100644
--- a/ui/views/widget/desktop_aura/desktop_native_widget_aura.h
+++ b/ui/views/widget/desktop_aura/desktop_native_widget_aura.h
@@ -79,9 +79,6 @@ class VIEWS_EXPORT DesktopNativeWidgetAura
   // as by the time we get here |dispatcher_| is NULL.
   virtual void OnDesktopWindowTreeHostDestroyed(aura::WindowTreeHost* host);
 
-  wm::InputMethodEventFilter* input_method_event_filter() {
-    return input_method_event_filter_.get();
-  }
   wm::CompoundEventFilter* root_window_event_filter() {
     return root_window_event_filter_.get();
   }
@@ -239,9 +236,6 @@ class VIEWS_EXPORT DesktopNativeWidgetAura
   friend class FocusManagerEventHandler;
   friend class RootWindowDestructionObserver;
 
-  // Installs the input method filter.
-  void InstallInputMethodEventFilter();
-
   // To save a clear on platforms where the window is never transparent, the
   // window is only set as transparent when the glass frame is in use.
   void UpdateWindowTransparency();
@@ -277,8 +271,6 @@ class VIEWS_EXPORT DesktopNativeWidgetAura
   // Toplevel event filter which dispatches to other event filters.
   scoped_ptr<wm::CompoundEventFilter> root_window_event_filter_;
 
-  scoped_ptr<wm::InputMethodEventFilter> input_method_event_filter_;
-
   scoped_ptr<DropHelper> drop_helper_;
   int last_drop_operation_;