Switch from WebDocument::insertUserStyleSheet() to insertStyleSheet().

chrome/renderer/extensions/dispatcher.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/renderer/extensions/dispatcher.h"
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
 #include "base/json/json_reader.h"
@@ skipping 1283 matching lines @@
     // WebKit doesn't let us define an additional user agent stylesheet, so we
     // insert the default platform app stylesheet into all documents that are
     // loaded in each app.
     std::string stylesheet =
         ResourceBundle::GetSharedInstance().
             GetRawDataResource(IDR_PLATFORM_APP_CSS).as_string();
     ReplaceFirstSubstringAfterOffset(&stylesheet, 0,
                                      "$FONTFAMILY", system_font_family_);
     ReplaceFirstSubstringAfterOffset(&stylesheet, 0,
                                      "$FONTSIZE", system_font_size_);
-    frame->document().insertUserStyleSheet(
-        WebString::fromUTF8(stylesheet), WebDocument::UserStyleAuthorLevel);
+    frame->document().insertStyleSheet(WebString::fromUTF8(stylesheet));
   }
 
   content_watcher_->DidCreateDocumentElement(frame);
 }
 
 void Dispatcher::DidMatchCSS(
     blink::WebFrame* frame,
     const blink::WebVector<blink::WebString>& newly_matching_selectors,
     const blink::WebVector<blink::WebString>& stopped_matching_selectors) {
   content_watcher_->DidMatchCSS(
@@ skipping 369 matching lines @@
 }
 
 void Dispatcher::ClearPortData(int port_id) {
   // Only the target port side has entries in |port_to_tab_id_map_|. If
   // |port_id| is a source port, std::map::erase() will just silently fail
   // here as a no-op.
   port_to_tab_id_map_.erase(port_id);
 }
 
 }  // namespace extensions