Use a correct instance to create ITfContext.

ui/base/ime/win/tsf_bridge.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 <msctf.h>
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
@@ skipping 265 matching lines @@
 bool TSFBridgeDelegate::CreateDocumentManager(TSFTextStore* text_store,
                                               ITfDocumentMgr** document_manager,
                                               ITfContext** context,
                                               DWORD* source_cookie) {
   if (FAILED(thread_manager_->CreateDocumentMgr(document_manager))) {
     DVLOG(1) << "Failed to create Document Manager.";
     return false;
   }
 
   DWORD edit_cookie = TF_INVALID_EDIT_COOKIE;
-  if (FAILED(document_manager_for_editable_->CreateContext(
+  if (FAILED((*document_manager)->CreateContext(
       client_id_,
       0,
       static_cast<ITextStoreACP*>(text_store),
       context,
       &edit_cookie))) {
     DVLOG(1) << "Failed to create Context.";
     return false;
   }
 
   if (FAILED((*document_manager)->Push(*context))) {
@@ skipping 185 matching lines @@
   return delegate;
 }
 
 // static
 void TSFBridge::Finalize(void* data) {
   TSFBridgeDelegate* delegate = static_cast<TSFBridgeDelegate*>(data);
   delete delegate;
 }
 
 }  // namespace ui