JPEG decoding: replace ownership comments with std::unique_ptr.

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 <memory>
 
@@ skipping 348 matching lines @@
                                                      sdib_record->offBmiSrc);
       const BYTE* bits = record_start + sdib_record->offBitsSrc;
       bool play_normally = true;
       res = false;
       HDC hdc = context->hdc;
       std::unique_ptr<SkBitmap> bitmap;
       if (bmih->biCompression == BI_JPEG) {
         if (!DIBFormatNativelySupported(hdc, CHECKJPEGFORMAT, bits,
                                         bmih->biSizeImage)) {
           play_normally = false;
-          bitmap.reset(gfx::JPEGCodec::Decode(bits, bmih->biSizeImage));
+          bitmap = gfx::JPEGCodec::Decode(bits, bmih->biSizeImage);
         }
       } else if (bmih->biCompression == BI_PNG) {
         if (!DIBFormatNativelySupported(hdc, CHECKPNGFORMAT, bits,
                                         bmih->biSizeImage)) {
           play_normally = false;
           bitmap.reset(new SkBitmap());
           gfx::PNGCodec::Decode(bits, bmih->biSizeImage, bitmap.get());
         }
       }
       if (!play_normally) {
@@ skipping 221 matching lines @@
   RECT rect = page_bounds.ToRECT();
   ::EnumEnhMetaFile(hdc, emf(), &RasterizeAlphaBlendProc, &bitmap_dc, &rect);
 
   result->FinishDocument();
 
   return result;
 }
 
 
 }  // namespace printing