Revert r135533.

ui/gfx/codec/png_codec.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/gfx/codec/png_codec.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_util.h"
 #include "ui/gfx/size.h"
-#include "ui/gfx/skia_util.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkUnPreMultiply.h"
 #include "third_party/skia/include/core/SkColorPriv.h"
 
 extern "C" {
 #if defined(USE_SYSTEM_LIBPNG)
 #include <png.h>
 #else
 #include "third_party/libpng/png.h"
 #endif
@@ skipping 48 matching lines @@
     } else {
       pixel_out[0] = SkGetPackedR32(pixel_in);
       pixel_out[1] = SkGetPackedG32(pixel_in);
       pixel_out[2] = SkGetPackedB32(pixel_in);
     }
   }
 }
 
 void ConvertSkiatoRGBA(const unsigned char* skia, int pixel_width,
                        unsigned char* rgba, bool* is_opaque) {
-  gfx::ConvertSkiaToRGBA(skia, pixel_width, rgba);
+  int total_length = pixel_width * 4;
+  for (int i = 0; i < total_length; i += 4) {
+    const uint32_t pixel_in = *reinterpret_cast<const uint32_t*>(&skia[i]);
+
+    // Pack the components here.
+    int alpha = SkGetPackedA32(pixel_in);
+    if (alpha != 0 && alpha != 255) {
+      SkColor unmultiplied = SkUnPreMultiply::PMColorToColor(pixel_in);
+      rgba[i + 0] = SkColorGetR(unmultiplied);
+      rgba[i + 1] = SkColorGetG(unmultiplied);
+      rgba[i + 2] = SkColorGetB(unmultiplied);
+      rgba[i + 3] = alpha;
+    } else {
+      rgba[i + 0] = SkGetPackedR32(pixel_in);
+      rgba[i + 1] = SkGetPackedG32(pixel_in);
+      rgba[i + 2] = SkGetPackedB32(pixel_in);
+      rgba[i + 3] = alpha;
+    }
+  }
 }
 
 }  // namespace
 
 // Decoder --------------------------------------------------------------------
 //
 // This code is based on WebKit libpng interface (PNGImageDecoder), which is
 // in turn based on the Mozilla png decoder.
 
 namespace {
@@ skipping 688 matching lines @@
 }
 
 PNGCodec::Comment::Comment(const std::string& k, const std::string& t)
     : key(k), text(t) {
 }
 
 PNGCodec::Comment::~Comment() {
 }
 
 }  // namespace gfx