Remove unnecessary calls to GURL()

chrome/browser/extensions/tab_helper.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/tab_helper.h"
 
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
@@ skipping 423 matching lines @@
                                         int return_route_id,
                                         const std::string& webstore_item_id,
                                         int listeners_mask) {
   GURL requestor_url(host->GetLastCommittedURL());
   // Check that the listener is reasonable. We should never get anything other
   // than an install stage listener, a download listener, or both.
   // The requestor_url should also be valid, and the renderer should disallow
   // child frames from sending the IPC.
   if ((listeners_mask & ~(api::webstore::INSTALL_STAGE_LISTENER |
                           api::webstore::DOWNLOAD_PROGRESS_LISTENER)) != 0 ||
-      !requestor_url.is_valid() || requestor_url == GURL(url::kAboutBlankURL) ||
+      !requestor_url.is_valid() || requestor_url == url::kAboutBlankURL ||
       host->GetParent()) {
     NOTREACHED();
     return;
   }
 
   if (pending_inline_installations_.count(webstore_item_id) != 0) {
     Send(new ExtensionMsg_InlineWebstoreInstallResponse(
         return_route_id, install_id, false,
         webstore_install::kInstallInProgressError,
         webstore_install::INSTALL_IN_PROGRESS));
@@ skipping 220 matching lines @@
   }
 }
 
 void TabHelper::SetTabId(content::RenderFrameHost* render_frame_host) {
   render_frame_host->Send(
       new ExtensionMsg_SetTabId(render_frame_host->GetRoutingID(),
                                 SessionTabHelper::IdForTab(web_contents())));
 }
 
 }  // namespace extensions