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

content/public/test/browser_test_utils.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 "content/public/test/browser_test_utils.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/process/kill.h"
 #include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/strings/string_piece.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_timeouts.h"
 #include "base/values.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/browser/web_contents/web_contents_view.h"
 #include "content/common/input/synthetic_web_input_event_builders.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/dom_operation_notification_details.h"
@@ skipping 210 matching lines @@
 
   std::string params = request.relative_url.substr(prefix.length());
 
   // A hostname to redirect to must be included in the URL, therefore at least
   // one '/' character is expected.
   size_t slash = params.find('/');
   if (slash == std::string::npos)
     return scoped_ptr<net::test_server::HttpResponse>();
 
   // Replace the host of the URL with the one passed in the URL.
-  std::string host = params.substr(0, slash);
   GURL::Replacements replace_host;
-  replace_host.SetHostStr(host);
+  replace_host.SetHostStr(base::StringPiece(params).substr(0, slash));
   GURL redirect_server = server_base_url.ReplaceComponents(replace_host);
 
   // Append the real part of the path to the new URL.
   std::string path = params.substr(slash + 1);
   GURL redirect_target(redirect_server.Resolve(path));
   DCHECK(redirect_target.is_valid());
 
   scoped_ptr<net::test_server::BasicHttpResponse> http_response(
       new net::test_server::BasicHttpResponse);
   http_response->set_code(net::HTTP_MOVED_PERMANENTLY);
@@ skipping 683 matching lines @@
 
 bool WebContentsAddedObserver::RenderViewCreatedCalled() {
   if (child_observer_) {
     return child_observer_->render_view_created_called_ &&
            child_observer_->main_frame_created_called_;
   }
   return false;
 }
 
 }  // namespace content