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

google_apis/gcm/engine/gservices_settings.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 "google_apis/gcm/engine/gservices_settings.h"
 
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 209 matching lines @@
   if (settings_diff)
     new_settings = settings_map();
 
   for (int i = 0; i < checkin_response.setting_size(); ++i) {
     std::string name = checkin_response.setting(i).name();
     if (name.empty()) {
       DVLOG(1) << "Setting name is empty";
       return false;
     }
 
-    if (settings_diff && name.find(kDeleteSettingPrefix) == 0) {
+    if (settings_diff && base::StartsWith(name, kDeleteSettingPrefix,
+                                          base::CompareCase::SENSITIVE)) {
       std::string setting_to_delete =
           name.substr(arraysize(kDeleteSettingPrefix) - 1);
       new_settings.erase(setting_to_delete);
       DVLOG(1) << "Setting deleted: " << setting_to_delete;
     } else {
       std::string value = checkin_response.setting(i).value();
       new_settings[name] = value;
       DVLOG(1) << "New setting: '" << name << "' : '" << value << "'";
     }
   }
@@ skipping 110 matching lines @@
         command_line->GetSwitchValueASCII(switches::kGCMRegistrationURL));
   }
 
   SettingsMap::const_iterator iter = settings_.find(kRegistrationURLKey);
   if (iter == settings_.end() || iter->second.empty())
     return GURL(kDefaultRegistrationURL);
   return GURL(iter->second);
 }
 
 }  // namespace gcm