Don't serialize extension user script injection results unless the extension

chrome/browser/extensions/api/tabs/tabs_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/tabs/tabs_api.h"
 
 #include <algorithm>
 #include <limits>
 #include <vector>
 
@@ skipping 1377 matching lines @@
     }
 
     TabHelper::FromWebContents(web_contents_)->
         script_executor()->ExecuteScript(
             extension_id(),
             ScriptExecutor::JAVASCRIPT,
             url.path(),
             ScriptExecutor::TOP_FRAME,
             UserScript::DOCUMENT_IDLE,
             ScriptExecutor::MAIN_WORLD,
-            false /* is_web_view */,
+            ScriptExecutor::DEFAULT_PROCESS,
+            ScriptExecutor::NO_RESULT,
             base::Bind(&TabsUpdateFunction::OnExecuteCodeFinished, this));
 
     *is_async = true;
     return true;
   }
 
   web_contents_->GetController().LoadURL(
       url, content::Referrer(), content::PAGE_TRANSITION_LINK, std::string());
 
   // The URL of a tab contents never actually changes to a JavaScript URL, so
@@ skipping 630 matching lines @@
   execute_tab_id_ = tab_id;
   details_ = details.Pass();
   return true;
 }
 
 bool TabsInsertCSSFunction::ShouldInsertCSS() const {
   return true;
 }
 
 }  // namespace extensions