Refactoring the ownership of ui::InputMethod.

ash/host/ash_window_tree_host_unified.h

 // Copyright 2015 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 ASH_HOST_ASH_WINDOW_TREE_HOST_UNIFIED_H_
 #define ASH_HOST_ASH_WINDOW_TREE_HOST_UNIFIED_H_
 
 #include <vector>
 
 #include "ash/host/ash_window_tree_host.h"
 #include "ash/host/transformer_helper.h"
 #include "ui/aura/window_observer.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/events/event_source.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace ui {
 class Reflector;
 }
 
 namespace ash {
 class DisplayInfo;
 
 // A WTH used for unified desktop mode. This creates an offscreen
 // compositor whose texture will be copied into each displays'
 // compositor.
 class AshWindowTreeHostUnified : public AshWindowTreeHost,
                                  public aura::WindowTreeHost,
-                                 public aura::WindowObserver,
-                                 public ui::EventSource {
+                                 public aura::WindowObserver {
  public:
   explicit AshWindowTreeHostUnified(const gfx::Rect& initial_bounds);
   ~AshWindowTreeHostUnified() override;
 
  private:
   // AshWindowTreeHost:
   void ToggleFullScreen() override;
   bool ConfineCursorToRootWindow() override;
   void UnConfineCursor() override;
   void SetRootWindowTransformer(
@@ skipping 17 matching lines @@
   void SetCapture() override;
   void ReleaseCapture() override;
   gfx::Point GetLocationOnNativeScreen() const override;
   void SetCursorNative(gfx::NativeCursor cursor) override;
   void MoveCursorToNative(const gfx::Point& location) override;
   void OnCursorVisibilityChangedNative(bool show) override;
 
   // aura::WindowObserver:
   void OnWindowDestroying(aura::Window* window) override;
 
-  // ui::EventSource:
-  ui::EventProcessor* GetEventProcessor() override;
-
   std::vector<AshWindowTreeHost*> mirroring_hosts_;
 
   gfx::Rect bounds_;
 
   TransformerHelper transformer_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(AshWindowTreeHostUnified);
 };
 
 }  // namespace ash
 
 #endif  // ASH_HOST_ASH_WINDOW_TREE_HOST_UNIFIED_H_