Add IsTsfAwareRequired method

base/win/metro.cc

 // 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.
 
 #include "base/win/metro.h"
 
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "base/win/scoped_comptr.h"
 #include "base/win/windows_version.h"
@@ skipping 55 matching lines @@
       // No "IsImmersiveProcess" export on user32.dll, so this is pre-Windows8
       // and therefore not immersive.
       state = kImmersiveFalse;
     }
   }
   DCHECK_NE(kImmersiveUnknown, state);
 
   return state == kImmersiveTrue;
 }
 
+bool IsTsfAwareRequired() {
+  // Although this function is equal to IsMetroProcess at this moment,
+  // Chrome for Win7 and Vista may support TSF in the future.
+  return IsMetroProcess();
+}
+
 wchar_t* LocalAllocAndCopyString(const string16& src) {
   size_t dest_size = (src.length() + 1) * sizeof(wchar_t);
   wchar_t* dest = reinterpret_cast<wchar_t*>(LocalAlloc(LPTR, dest_size));
   base::wcslcpy(dest, src.c_str(), dest_size);
   return dest;
 }
 
 bool IsTouchEnabled() {
   int value = GetSystemMetrics(SM_DIGITIZER);
   return value & (NID_READY | NID_INTEGRATED_TOUCH) ==
@@ skipping 27 matching lines @@
   unsigned long restrictions = 0;
   settings->GetRestrictions(&restrictions);
 
   parental_control_logging_required =
       (restrictions & WPCFLAG_LOGGING_REQUIRED) == WPCFLAG_LOGGING_REQUIRED;
   return parental_control_logging_required;
 }
 
 }  // namespace win
 }  // namespace base