IME (input method editor) support for Aura, part 3 of 3: Use ui::InputMethod in ash.

ui/aura/desktop_host_win.h

Index: ui/aura/desktop_host_win.h
diff --git a/ui/aura/desktop_host_win.h b/ui/aura/desktop_host_win.h
index 9309d2bf9ff26f0e1f93d4a5cc27045110b2bbe5..71f5eed29f446fbc2c8a36110436a0f358419422 100644
--- a/ui/aura/desktop_host_win.h
+++ b/ui/aura/desktop_host_win.h
@@ -8,11 +8,15 @@
 
 #include "base/compiler_specific.h"
 #include "ui/aura/desktop_host.h"
+#include "ui/base/ime/input_method_delegate.h"
+#include "ui/base/ime/mock_input_method.h"
 #include "ui/base/win/window_impl.h"
 
 namespace aura {
 
-class DesktopHostWin : public DesktopHost, public ui::WindowImpl {
+class DesktopHostWin : public DesktopHost,
+                       public ui::internal::InputMethodDelegate,
+                       public ui::WindowImpl {
  public:
   explicit DesktopHostWin(const gfx::Rect& bounds);
   virtual ~DesktopHostWin();
@@ -30,6 +34,12 @@ class DesktopHostWin : public DesktopHost, public ui::WindowImpl {
   virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
   virtual gfx::Point QueryMouseLocation() OVERRIDE;
   virtual void PostNativeEvent(const base::NativeEvent& native_event) OVERRIDE;
+  virtual ui::InputMethod* GetInputMethod() OVERRIDE;
+
+  // ui::internal::InputMethodDelegate Override.
+  virtual void DispatchKeyEventPostIME(const base::NativeEvent& event) OVERRIDE;
+  virtual void DispatchFabricatedKeyEventPostIME(
+      ui::EventType type, ui::KeyboardCode key_code, int flags) OVERRIDE;
 
  private:
   BEGIN_MSG_MAP_EX(DesktopHostWin)
@@ -59,6 +69,9 @@ class DesktopHostWin : public DesktopHost, public ui::WindowImpl {
 
   Desktop* desktop_;
 
+  // TODO(yusukes): implement ui::InputMethodWin.
+  ui::MockInputMethod input_method_;
+
   bool fullscreen_;
   RECT saved_window_rect_;
   DWORD saved_window_style_;