FilePath: add a convertor to ASCII

chrome/browser/spellcheck_host.cc

 // Copyright (c) 2010 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/spellcheck_host.h"
 
 #include <fcntl.h>
 
 #include <set>
 
@@ skipping 250 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (!request_context_getter_) {
     InitializeOnFileThread();
     return;
   }
 
   // Determine URL of file to download.
   static const char kDownloadServerUrl[] =
       "http://cache.pack.google.com/edgedl/chrome/dict/";
+  std::string bdict_file = bdict_file_path_.BaseName().MaybeAsASCII();
+  if (bdict_file.empty()) {
+    NOTREACHED();
+    return;
+  }
   GURL url = GURL(std::string(kDownloadServerUrl) +
-      StringToLowerASCII(WideToUTF8(
-          bdict_file_path_.BaseName().ToWStringHack())));
+                  StringToLowerASCII(bdict_file));
   fetcher_.reset(new URLFetcher(url, URLFetcher::GET, this));
   fetcher_->set_request_context(request_context_getter_);
   tried_to_download_ = true;
   fetcher_->Start();
   request_context_getter_ = NULL;
 }
 
 void SpellCheckHost::WriteWordToCustomDictionary(const std::string& word) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 
@@ skipping 72 matching lines @@
       BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
           NewRunnableMethod(this,
               &SpellCheckHost::InformObserverOfInitialization));
       return;
     }
   }
 
   data_.clear();
   Initialize();
 }