Replace PeekMessage for TSF awareness

base/win/text_services_message_filter.h

Index: base/win/text_services_message_filter.h
diff --git a/base/win/text_services_message_filter.h b/base/win/text_services_message_filter.h
new file mode 100755
index 0000000000000000000000000000000000000000..2de8496ff9a0b9ec8be39529a226fa14e1bf5c5e
--- /dev/null
+++ b/base/win/text_services_message_filter.h
@@ -0,0 +1,48 @@
+// 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 BASE_WIN_TEXT_SERVICES_MESSAGE_FILTER_H_
+#define BASE_WIN_TEXT_SERVICES_MESSAGE_FILTER_H_
+
+#include <msctf.h>
+#include <Windows.h>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/message_pump_win.h"
+#include "base/win/metro.h"
+#include "base/win/scoped_comptr.h"
+
+namespace base {
+namespace win {
+
+// TextServicesMessageFilter extends MessageFilter with methods that are using
+// Text Services Framework COM component.
+class BASE_EXPORT TextServicesMessageFilter
+    : public base::MessagePumpForUI::MessageFilter {
+ public:
+  TextServicesMessageFilter();
+  virtual ~TextServicesMessageFilter();
+  virtual BOOL DoPeekMessage(MSG* msg,
+                             HWND window_handle,
+                             UINT msg_filter_min,
+                             UINT msg_filter_max,
+                             UINT remove_msg) OVERRIDE;
+  virtual bool ProcessMessage(const MSG& msg) OVERRIDE;
+
+  bool Init();
+
+ private:
+  TfClientId client_id_;
+  bool is_initialized_;
+  base::win::ScopedComPtr<ITfThreadMgr> thread_mgr_;
+  base::win::ScopedComPtr<ITfMessagePump> message_pump_;
+  base::win::ScopedComPtr<ITfKeystrokeMgr> keystroke_mgr_;
+
+  DISALLOW_COPY_AND_ASSIGN(TextServicesMessageFilter);
+};
+
+}  // namespace win
+}  // namespace base
+
+#endif  // BASE_WIN_TEXT_SERVICES_MESSAGE_FILTER_H_