[Cleanup] Fix pronouns in comments.

chrome/browser/ui/webui/options/browser_options_handler.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/ui/webui/options/browser_options_handler.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 1113 matching lines @@
 void BrowserOptionsHandler::BecomeDefaultBrowser(const base::ListValue* args) {
   // If the default browser setting is managed then we should not be able to
   // call this function.
   if (default_browser_policy_.IsManaged())
     return;
 
   content::RecordAction(UserMetricsAction("Options_SetAsDefaultBrowser"));
   default_browser_worker_->StartSetAsDefault();
   // Callback takes care of updating UI.
 
-  // If the user attempted to make Chrome the default browser, then he/she
-  // arguably wants to be notified when that changes.
+  // If the user attempted to make Chrome the default browser, then they
+  // arguably want to be notified when that changes.

[Dan Beam, 2015/05/21 00:05:58]

nit:

If the user attempted to make Chrome the default browser, notify
them when this changes.

   PrefService* prefs = Profile::FromWebUI(web_ui())->GetPrefs();
   prefs->SetBoolean(prefs::kCheckDefaultBrowser, true);
 }
 
 int BrowserOptionsHandler::StatusStringIdForState(
     ShellIntegration::DefaultWebClientState state) {
   if (state == ShellIntegration::IS_DEFAULT)
     return IDS_OPTIONS_DEFAULTBROWSER_DEFAULT;
   if (state == ShellIntegration::NOT_DEFAULT)
     return IDS_OPTIONS_DEFAULTBROWSER_NOTDEFAULT;
@@ skipping 1026 matching lines @@
 void BrowserOptionsHandler::OnPolicyUpdated(const policy::PolicyNamespace& ns,
                                             const policy::PolicyMap& previous,
                                             const policy::PolicyMap& current) {
   std::set<std::string> different_keys;
   current.GetDifferingKeys(previous, &different_keys);
   if (ContainsKey(different_keys, policy::key::kMetricsReportingEnabled))
     SetupMetricsReportingCheckbox();
 }
 
 }  // namespace options