Add TS_SS_TRANSITORY flag to the return value of TsfTextStore::GetStatus.

ui/base/win/tsf_text_store.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 "ui/base/win/tsf_text_store.h"
 
 #include <OleCtl.h>
 
 #include "base/win/scoped_variant.h"
 #include "ui/base/ime/text_input_client.h"
@@ skipping 171 matching lines @@
     *fetched_count = 1;
   }
   return S_OK;
 }
 
 STDMETHODIMP TsfTextStore::GetStatus(TS_STATUS* status) {
   if (!status)
     return E_INVALIDARG;
 
   status->dwDynamicFlags = 0;
-  // We don't support hidden text.
-  status->dwStaticFlags = TS_SS_NOHIDDENTEXT;
+  // We use transitory contexts and we don't support hidden text.
+  status->dwStaticFlags = TS_SS_TRANSITORY | TS_SS_NOHIDDENTEXT;
 
   return S_OK;
 }
 
 STDMETHODIMP TsfTextStore::GetText(LONG acp_start,
                                    LONG acp_end,
                                    wchar_t* text_buffer,
                                    ULONG text_buffer_size,
                                    ULONG* text_buffer_copied,
                                    TS_RUNINFO* run_info_buffer,
@@ skipping 592 matching lines @@
 
 bool TsfTextStore::HasReadLock() const {
   return (current_lock_type_ & TS_LF_READ) == TS_LF_READ;
 }
 
 bool TsfTextStore::HasReadWriteLock() const {
   return (current_lock_type_ & TS_LF_READWRITE) == TS_LF_READWRITE;
 }
 
 }  // namespace ui