Remove redundant c_str() calls.

chrome/browser/loader/chrome_resource_dispatcher_host_delegate.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/loader/chrome_resource_dispatcher_host_delegate.h"
 
 #include <stdint.h>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 756 matching lines @@
   // show the profile avatar bubble so that user can complete signin/out action
   // the native UI.
   signin::ProcessMirrorResponseHeaderIfExists(request, io_data,
                                               info->GetChildID(),
                                               info->GetRouteID());
 
   // Built-in additional protection for the chrome web store origin.
 #if BUILDFLAG(ENABLE_EXTENSIONS)
   GURL webstore_url(extension_urls::GetWebstoreLaunchURL());
   if (request->url().SchemeIsHTTPOrHTTPS() &&
-      request->url().DomainIs(webstore_url.host().c_str())) {
+      request->url().DomainIs(webstore_url.host())) {

[Charlie Harrison, 2017/01/10 00:20:35]

Drive-by: this does a string copy. You should use webstore_url.host_piece().

[Andrey Kraynov, 2017/01/10 11:15:18]

Thanks for pointing!
Done.

     net::HttpResponseHeaders* response_headers = request->response_headers();
     if (response_headers &&
         !response_headers->HasHeaderValue("x-frame-options", "deny") &&
         !response_headers->HasHeaderValue("x-frame-options", "sameorigin")) {
       response_headers->RemoveHeader("x-frame-options");
       response_headers->AddHeader("x-frame-options: sameorigin");
     }
   }
 #endif
 
@@ skipping 107 matching lines @@
           base::Bind(&ChromeResourceDispatcherHostDelegate::OnAbortedFrameLoad,
                     base::Unretained(this), url, request_loading_time));
       return;
   }
 
   std::string metric_name = (request_loading_time.InMilliseconds() < 100 ?
       "Net.ErrAborted.Fast" : "Net.ErrAborted.Slow");
   rappor::SampleDomainAndRegistryFromGURL(
       g_browser_process->rappor_service(), metric_name, url);
 }