[WIP] make GURL::path() return a StringPiece

components/sync/driver/sync_stopped_reporter.cc

 // Copyright 2015 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 "components/sync/driver/sync_stopped_reporter.h"
 
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
@@ skipping 80 matching lines @@
 void SyncStoppedReporter::OnTimeout() {
   fetcher_.reset();
   if (!callback_.is_null()) {
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(callback_, RESULT_TIMEOUT));
   }
 }
 
 // Static.
 GURL SyncStoppedReporter::GetSyncEventURL(const GURL& sync_service_url) {
-  std::string path = sync_service_url.path();
+  std::string path = sync_service_url.path().as_string();
   if (path.empty() || *path.rbegin() != '/') {
     path += '/';
   }
   path += kEventEndpoint;
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
   return sync_service_url.ReplaceComponents(replacements);
 }
 
 void SyncStoppedReporter::SetTimerTaskRunnerForTest(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner) {
   timer_.SetTaskRunner(task_runner);
 }
 
 }  // namespace syncer