SkBitmap and SkPixelRef no longer need lock/unlock

ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.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 "ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <X11/Xatom.h>
 
@@ skipping 1334 matching lines @@
 
 bool DesktopDragDropClientAuraX11::IsValidDragImage(
     const gfx::ImageSkia& image) {
   if (image.isNull())
     return false;
 
   // Because we need a GL context per window, we do a quick check so that we
   // don't make another context if the window would just be displaying a mostly
   // transparent image.
   const SkBitmap* in_bitmap = image.bitmap();
-  SkAutoLockPixels in_lock(*in_bitmap);
   for (int y = 0; y < in_bitmap->height(); ++y) {
     uint32_t* in_row = in_bitmap->getAddr32(0, y);
 
     for (int x = 0; x < in_bitmap->width(); ++x) {
       if (SkColorGetA(in_row[x]) > kMinAlpha)
         return true;
     }
   }
 
   return false;
 }
 
 }  // namespace views