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

chrome/renderer/extensions/user_script_scheduler.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/user_script_scheduler.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/common/extensions/extension_messages.h"
@@ skipping 220 matching lines @@
         // V8ValueConverterImpl shouldn't actually care about the context scope,
         // and it switches to v8::Object's creation context when encountered.
         v8::Local<v8::Context> context = child_frame->mainWorldScriptContext();
         base::Value* result = v8_converter->FromV8Value(script_value, context);
         // Always append an execution result (i.e. no result == null result) so
         // that |execution_results| lines up with the frames.
         execution_results.Append(
             result ? result : base::Value::CreateNullValue());
       }
     } else {
-      child_frame->document().insertUserStyleSheet(
-          WebString::fromUTF8(params.code),
-          // Author level is consistent with WebView::injectStyleSheet.
-          WebDocument::UserStyleAuthorLevel);
+      child_frame->document().insertStyleSheet(
+          WebString::fromUTF8(params.code));
     }
   }
 
   render_view->Send(new ExtensionHostMsg_ExecuteCodeFinished(
       render_view->GetRoutingID(),
       params.request_id,
       error,
       render_view->GetPageId(),
       UserScriptSlave::GetDataSourceURLForFrame(frame_),
       execution_results));
 }
 
 bool UserScriptScheduler::GetAllChildFrames(
     WebFrame* parent_frame,
     std::vector<WebFrame*>* frames_vector) const {
   if (!parent_frame)
     return false;
 
   for (WebFrame* child_frame = parent_frame->firstChild(); child_frame;
        child_frame = child_frame->nextSibling()) {
     frames_vector->push_back(child_frame);
     GetAllChildFrames(child_frame, frames_vector);
   }
   return true;
 }
 
 }  // namespace extensions