Fix some grammar in chrome/browser/ui/views/

chrome/browser/ui/views/tabs/browser_tab_strip_controller.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/views/tabs/browser_tab_strip_controller.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "chrome/browser/extensions/extension_tab_helper.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
@@ skipping 129 matching lines @@
   model_->AddObserver(this);
 
   notification_registrar_.Add(this,
       chrome::NOTIFICATION_TAB_CLOSEABLE_STATE_CHANGED,
       content::NotificationService::AllSources());
 }
 
 BrowserTabStripController::~BrowserTabStripController() {
   // When we get here the TabStrip is being deleted. We need to explicitly
   // cancel the menu, otherwise it may try to invoke something on the tabstrip
-  // from it's destructor.
+  // from its destructor.
   if (context_menu_contents_.get())
     context_menu_contents_->Cancel();
 
   model_->RemoveObserver(this);
 }
 
 void BrowserTabStripController::InitFromModel(TabStrip* tabstrip) {
   tabstrip_ = tabstrip;
   // Walk the model, calling our insertion observer method for each item within
   // it.
@@ skipping 317 matching lines @@
 
 void BrowserTabStripController::StopHighlightTabsForCommand(
     TabStripModel::ContextMenuCommand command_id,
     BaseTab* tab) {
   if (command_id == TabStripModel::CommandCloseTabsToRight ||
       command_id == TabStripModel::CommandCloseOtherTabs) {
     // Just tell all Tabs to stop pulsing - it's safe.
     tabstrip_->StopAllHighlighting();
   }
 }