Move IsStringUTF8/ASCII to base namespace

chrome/browser/extensions/url_request_util.cc

 // Copyright 2014 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/url_request_util.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 89 matching lines @@
   void OnMimeTypeRead(std::string* out_mime_type,
                       std::string* charset,
                       std::string* data,
                       std::string* read_mime_type,
                       const net::CompletionCallback& callback,
                       bool read_result) {
     *out_mime_type = *read_mime_type;
     if (StartsWithASCII(*read_mime_type, "text/", false)) {
       // All of our HTML files should be UTF-8 and for other resource types
       // (like images), charset doesn't matter.
-      DCHECK(IsStringUTF8(*data));
+      DCHECK(base::IsStringUTF8(*data));
       *charset = "utf-8";
     }
     int result = read_result ? net::OK : net::ERR_INVALID_URL;
     callback.Run(result);
   }
 
   // We need the filename of the resource to determine the mime type.
   base::FilePath filename_;
 
   // The resource bundle id to load.
@@ skipping 123 matching lines @@
       content::ResourceRequestInfo::ForRequest(request);
   ExtensionRendererState* renderer_state =
       ExtensionRendererState::GetInstance();
   ExtensionRendererState::WebViewInfo webview_info;
   return renderer_state->GetWebViewInfo(
       info->GetChildID(), info->GetRouteID(), &webview_info);
 }
 
 }  // namespace url_request_util
 }  // namespace extensions