Use base::StartWith() in more places when appropriate.

chrome/browser/sync/test/integration/sync_test.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/sync/test/integration/sync_test.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <limits>
@@ skipping 127 matching lines @@
 // Helper class that checks whether a sync test server is running or not.
 class SyncServerStatusChecker : public net::URLFetcherDelegate {
  public:
   SyncServerStatusChecker() : running_(false) {}
 
   void OnURLFetchComplete(const net::URLFetcher* source) override {
     std::string data;
     source->GetResponseAsString(&data);
     running_ =
         (source->GetStatus().status() == net::URLRequestStatus::SUCCESS &&
-        source->GetResponseCode() == 200 && data.find("ok") == 0);
+         source->GetResponseCode() == 200 &&
+         base::StartsWith(data, "ok", base::CompareCase::SENSITIVE));
     base::MessageLoop::current()->QuitWhenIdle();
   }
 
   bool running() const { return running_; }
 
  private:
   bool running_;
 };
 
 bool IsEncryptionComplete(const ProfileSyncService* service) {
@@ skipping 971 matching lines @@
 
 void SyncTest::TriggerSyncForModelTypes(int index,
                                         syncer::ModelTypeSet model_types) {
   GetSyncService(index)->TriggerRefresh(model_types);
 }
 
 void SyncTest::SetPreexistingPreferencesFileContents(
     const std::string& contents) {
   preexisting_preferences_file_contents_ = contents;
 }