SkBitmap and SkPixelRef no longer need lock/unlock

printing/emf_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 "printing/emf_win.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 364 matching lines @@
           play_normally = false;
           bitmap = base::MakeUnique<SkBitmap>();
           gfx::PNGCodec::Decode(bits, bmih->biSizeImage, bitmap.get());
         }
       }
       if (play_normally) {
         res = Play(context);
       } else {
         DCHECK(bitmap.get());
         if (bitmap.get()) {
-          SkAutoLockPixels lock(*bitmap.get());
           DCHECK_EQ(bitmap->colorType(), kN32_SkColorType);
           const uint32_t* pixels =
               static_cast<const uint32_t*>(bitmap->getPixels());
           if (!pixels) {
             NOTREACHED();
             return false;
           }
           BITMAPINFOHEADER bmi = {0};
           skia::CreateBitmapHeader(bitmap->width(), bitmap->height(), &bmi);
           res = (0 != StretchDIBits(hdc, sdib_record->xDest, sdib_record->yDest,
@@ skipping 199 matching lines @@
 
   HDC bitmap_dc = bitmap.context();
   RECT rect = page_bounds.ToRECT();
   ::EnumEnhMetaFile(hdc, emf(), &RasterizeAlphaBlendProc, &bitmap_dc, &rect);
 
   result->FinishDocument();
   return result;
 }
 
 }  // namespace printing