Revert 257524 "Move IsStringASCII/UTF8 to base namespace."

trunk/src/chrome/browser/extensions/api/web_request/web_request_api.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 "chrome/browser/extensions/api/web_request/web_request_api.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 284 matching lines @@
   }
   return true;
 }
 
 // Converts the |name|, |value| pair of a http header to a HttpHeaders
 // dictionary. Ownership is passed to the caller.
 base::DictionaryValue* ToHeaderDictionary(const std::string& name,
                                           const std::string& value) {
   base::DictionaryValue* header = new base::DictionaryValue();
   header->SetString(keys::kHeaderNameKey, name);
-  if (base::IsStringUTF8(value)) {
+  if (IsStringUTF8(value)) {
     header->SetString(keys::kHeaderValueKey, value);
   } else {
     header->Set(keys::kHeaderBinaryValueKey,
                 helpers::StringToCharList(value));
   }
   return header;
 }
 
 // Creates a list of HttpHeaders (see the extension API JSON). If |headers| is
 // NULL, the list is empty. Ownership is passed to the caller.
@@ skipping 2122 matching lines @@
       } else if ((*it)->name().find("AdBlock") != std::string::npos) {
         adblock = true;
       } else {
         other = true;
       }
     }
   }
 
   host->Send(new ExtensionMsg_UsingWebRequestAPI(adblock, adblock_plus, other));
 }