GURL::Replacements methods accept a StringPiece instead of std::string&.

chrome/browser/chromeos/app_mode/fake_cws.cc

 // Copyright 2014 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/chromeos/app_mode/fake_cws.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
@@ skipping 86 matching lines @@
                         &update_check_content_);
 }
 
 int FakeCWS::GetUpdateCheckCountAndReset() {
   int current_count = update_check_count_;
   update_check_count_ = 0;
   return current_count;
 }
 
 void FakeCWS::SetupWebStoreURL(const GURL& test_server_url) {
-  std::string webstore_host(kWebstoreDomain);
   GURL::Replacements replace_webstore_host;
-  replace_webstore_host.SetHostStr(webstore_host);
+  replace_webstore_host.SetHostStr(kWebstoreDomain);
   web_store_url_ = test_server_url.ReplaceComponents(replace_webstore_host);
 }
 
 void FakeCWS::OverrideGalleryCommandlineSwitches() {
   DCHECK(web_store_url_.is_valid());
 
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 
   command_line->AppendSwitchASCII(
       ::switches::kAppsGalleryURL,
@@ skipping 40 matching lines @@
     http_response->set_code(net::HTTP_OK);
     http_response->set_content_type("text/xml");
     http_response->set_content(update_check_content_);
     return http_response.Pass();
   }
 
   return scoped_ptr<HttpResponse>();
 }
 
 }  // namespace chromeos