Refactoring the ownership of ui::InputMethod.

ui/aura/remote_window_tree_host_win.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_
 #define UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 22 matching lines @@
 class Sender;
 }
 
 namespace aura {
 
 // WindowTreeHost implementaton that receives events from a different
 // process. In the case of Windows this is the Windows 8 (aka Metro)
 // frontend process, which forwards input events to this class.
 class AURA_EXPORT RemoteWindowTreeHostWin
     : public WindowTreeHost,
-      public ui::EventSource,
       public ui::internal::RemoteInputMethodDelegateWin {
  public:
   // Returns the current RemoteWindowTreeHostWin. This does *not* create a
   // RemoteWindowTreeHostWin.
   static RemoteWindowTreeHostWin* Instance();
 
   // Returns true if there is a RemoteWindowTreeHostWin and it has a valid
   // HWND. A return value of false typically indicates we're not in metro mode.
   static bool IsValid();
 
@@ skipping 68 matching lines @@
   void Hide() override;
   gfx::Rect GetBounds() const override;
   void SetBounds(const gfx::Rect& bounds) override;
   gfx::Point GetLocationOnNativeScreen() const override;
   void SetCapture() override;
   void ReleaseCapture() override;
   void SetCursorNative(gfx::NativeCursor cursor) override;
   void MoveCursorToNative(const gfx::Point& location) override;
   void OnCursorVisibilityChangedNative(bool show) override;
 
-  // ui::EventSource:
-  ui::EventProcessor* GetEventProcessor() override;
-
   // ui::internal::RemoteInputMethodDelegateWin overrides:
   void CancelComposition() override;
   void OnTextInputClientUpdated(
       const std::vector<int32>& input_scopes,
       const std::vector<gfx::Rect>& composition_character_bounds) override;
 
   // Helper function to dispatch a keyboard message to the desired target.
   // The default target is the WindowEventDispatcher. For nested message loop
   // invocations we post a synthetic keyboard message directly into the message
   // loop. The dispatcher for the nested loop would then decide how this
@@ skipping 38 matching lines @@
 
   // Current size of this root window.
   gfx::Size window_size_;
 
   DISALLOW_COPY_AND_ASSIGN(RemoteWindowTreeHostWin);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_