Add IsTsfAwareRequired method

base/win/metro.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 BASE_WIN_METRO_H_
 #define BASE_WIN_METRO_H_
 
 #include <windows.h>
 #include <wpcapi.h>
 
@@ skipping 37 matching lines @@
 BASE_EXPORT extern const char kActivateApplication[];
 
 // Returns the handle to the metro dll loaded in the process. A NULL return
 // indicates that the metro dll was not loaded in the process.
 BASE_EXPORT HMODULE GetMetroModule();
 
 // Returns true if this process is running as an immersive program
 // in Windows Metro mode.
 BASE_EXPORT bool IsMetroProcess();
 
+// Returns true if this process is running under Text Services Framework (TSF)
+// and browser must be TSF-aware.
+BASE_EXPORT bool IsTsfAwareRequired();
+
 // Allocates and returns the destination string via the LocalAlloc API after
 // copying the src to it.
 BASE_EXPORT wchar_t* LocalAllocAndCopyString(const string16& src);
 
 // Returns true if the screen supports touch.
 BASE_EXPORT bool IsTouchEnabled();
 
 // Returns true if Windows Parental control activity logging is enabled. This
 // feature is available on Windows Vista and beyond.
 // This function should ideally be called on the UI thread.
 BASE_EXPORT bool IsParentalControlActivityLoggingOn();
 
 // Handler function for the buttons on a metro dialog box
 typedef void (*MetroDialogButtonPressedHandler)();
 
 }  // namespace win
 }  // namespace base
 
 #endif  // BASE_WIN_METRO_H_