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

chrome/browser/ui/views/tabs/tab_drag_controller2.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/tab_drag_controller2.h"
 
 #include <math.h>
 #include <set>
 
 #include "base/callback.h"
@@ skipping 589 matching lines @@
     }
     if (is_dragging_window_) {
       BrowserView* browser_view = GetAttachedBrowserView();
       // Need to release the drag controller before starting the move loop as
       // it's going to trigger capture lost, which cancels drag.
       attached_tabstrip_->ReleaseDragController();
       target_tabstrip->OwnDragController(this);
       // Disable animations so that we don't see a close animation on aero.
       browser_view->GetWidget()->SetVisibilityChangedAnimationsEnabled(false);
       browser_view->GetWidget()->ReleaseMouseCapture();
-      // EndMoveLoop is going to snap the window back to it's original location.
+      // EndMoveLoop is going to snap the window back to its original location.
       // Hide it so users don't see this.
       browser_view->GetWidget()->Hide();
       browser_view->GetWidget()->EndMoveLoop();
 
       // Ideally we would always swap the tabs now, but on windows it seems that
       // running the move loop implicitly activates the window when done,
       // leading to all sorts of flicker. So, on windows, instead we process
       // the move after the loop completes. But on chromeos, we can do tab
       // swapping now to avoid the tab flashing issue(crbug.com/116329).
 #if defined(OS_CHROMEOS)
@@ skipping 799 matching lines @@
   browser->window()->SetBounds(new_bounds);
   return browser;
 }
 
 void TabDragController2::SetTrackedByWorkspace(gfx::NativeWindow window,
                                                bool value) {
 #if defined(USE_ASH)
   ash::SetTrackedByWorkspace(window, value);
 #endif
 }