Introduce TsfEventRouter.

ui/base/win/tsf_bridge.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_BASE_WIN_TSF_BRIDGE_H_
 #define UI_BASE_WIN_TSF_BRIDGE_H_
 
 #include <Windows.h>
+#include <msctf.h>
+
 #include "base/basictypes.h"
+#include "base/win/scoped_comptr.h"
 #include "ui/base/ui_export.h"
 
 namespace ui {
 class TextInputClient;
 
 // TsfBridge provides high level IME related operations on top of Text Services
 // Framework (TSF). TsfBridge is managed by TLS because TSF related stuff is
 // associated with each thread and not allowed to access across thread boundary.
 // To be consistent with IMM32 behavior, TsfBridge is shared in the same thread.
 // TsfBridge is used by the web content text inputting field, for example
@@ skipping 34 matching lines @@
 
   // Sets currently focused TextInputClient.
   // Caller must free |client|.
   virtual void SetFocusedClient(HWND focused_window,
                                 TextInputClient* client) = 0;
 
   // Removes currently focused TextInputClient.
   // Caller must free |client|.
   virtual void RemoveFocusedClient(TextInputClient* client) = 0;
 
+  // Obtains current thread manager.
+  virtual base::win::ScopedComPtr<ITfThreadMgr> GetThreadManager() = 0;
+
  protected:
   // Uses GetInstance() instead.
   TsfBridge();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TsfBridge);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_WIN_TSF_BRIDGE_H_