[Cleanup] Fix pronouns in comments.

components/translate/core/browser/translate_manager.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 "components/translate/core/browser/translate_manager.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
@@ skipping 189 matching lines @@
     // This page was navigated through a click from a translated page.
     TranslateBrowserMetrics::ReportInitiationStatus(
         TranslateBrowserMetrics::INITIATION_STATUS_AUTO_BY_LINK);
     TranslatePage(language_code, auto_translate_to, false);
     return;
   }
 
   TranslateBrowserMetrics::ReportInitiationStatus(
       TranslateBrowserMetrics::INITIATION_STATUS_SHOW_INFOBAR);
 
-  // Prompts the user if he/she wants the page translated.
+  // Prompts the user if they want the page translated.
   translate_client_->ShowTranslateUI(translate::TRANSLATE_STEP_BEFORE_TRANSLATE,
                                      language_code,
                                      target_lang,
                                      TranslateErrors::NONE,
                                      false);
 }
 
 void TranslateManager::TranslatePage(const std::string& original_source_lang,
                                      const std::string& target_lang,
                                      bool triggered_from_menu) {
@@ skipping 164 matching lines @@
       return auto_target_lang;
   }
   return std::string();
 }
 
 LanguageState& TranslateManager::GetLanguageState() {
   return language_state_;
 }
 
 }  // namespace translate