Remove wstring from autocomplete.

chrome/browser/autocomplete/autocomplete_accessibility.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/autocomplete/autocomplete_accessibility.h"
 
 #include "chrome/browser/autocomplete/autocomplete_edit.h"
 #include "chrome/browser/autocomplete/autocomplete_edit_view_win.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 102 matching lines @@
 
   return S_FALSE;
 }
 
 STDMETHODIMP AutocompleteAccessibility::get_accValue(VARIANT var_id,
                                                      BSTR* value) {
   if (var_id.vt != VT_I4 || !value) {
     return E_INVALIDARG;
   }
 
-  std::wstring temp_value;
+  string16 temp_value;
 
   if (var_id.lVal != CHILDID_SELF)
     return E_INVALIDARG;
 
   // Edit box has no children, only handle self.
   temp_value = edit_box_->GetText();
   if (temp_value.empty())
     return S_FALSE;
 
   // Return value retrieved.
@@ skipping 119 matching lines @@
                                                     BSTR put_name) {
   // Deprecated.
   return DISP_E_MEMBERNOTFOUND;
 }
 
 STDMETHODIMP AutocompleteAccessibility::put_accValue(VARIANT var_id,
                                                      BSTR put_val) {
   // Deprecated.
   return DISP_E_MEMBERNOTFOUND;
 }