SkBitmap and SkPixelRef no longer need lock/unlock

ui/base/dragdrop/drag_utils_win.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/base/dragdrop/drag_utils.h"
 
 #include <objidl.h>
 #include <shlobj.h>
 #include <shobjidl.h>
 #include <stddef.h>
@@ skipping 35 matching lines @@
   base::win::ScopedGetDC screen_dc(NULL);
   BITMAPINFOHEADER header;
   skia::CreateBitmapHeader(sk_bitmap.width(), sk_bitmap.height(), &header);
   void* bits;
   HBITMAP bitmap =
       CreateDIBSection(screen_dc, reinterpret_cast<BITMAPINFO*>(&header),
                        DIB_RGB_COLORS, &bits, NULL, 0);
   if (!bitmap || !bits)
     return NULL;
   DCHECK_EQ(sk_bitmap.rowBytes(), static_cast<size_t>(sk_bitmap.width() * 4));
-  SkAutoLockPixels lock(sk_bitmap);
   memcpy(
       bits, sk_bitmap.getPixels(), sk_bitmap.height() * sk_bitmap.rowBytes());
   return bitmap;
 }
 
 void SetDragImageOnDataObject(const gfx::ImageSkia& image_skia,
                               const gfx::Vector2d& cursor_offset,
                               ui::OSExchangeData* data_object) {
   DCHECK(data_object && !image_skia.size().IsEmpty());
   // InitializeFromBitmap() doesn't expect an alpha channel and is confused
@@ skipping 11 matching lines @@
   }
 
   // TODO: the above code is used in non-Ash, while below is used in Ash. If we
   // could figure this context out then we wouldn't do unnecessary work. However
   // as it stands getting this information in ui/base would be a layering
   // violation.
   data_object->provider().SetDragImage(image_skia, cursor_offset);
 }
 
 }  // namespace drag_utils