Remove unused gfx::Image constructor which takes in ImageSkiaRep

ui/gfx/image/image.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/image/image.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 304 matching lines @@
   AddRepresentation(rep);
 }
 
 Image::Image(const ImageSkia& image)
     : storage_(new internal::ImageStorage(Image::kImageRepSkia)) {
   internal::ImageRepSkia* rep = new internal::ImageRepSkia(
       new ImageSkia(image));
   AddRepresentation(rep);
 }
 
-Image::Image(const ImageSkiaRep& image_skia_rep)
-    : storage_(new internal::ImageStorage(Image::kImageRepSkia)) {
-  internal::ImageRepSkia* rep =
-      new internal::ImageRepSkia(new ImageSkia(image_skia_rep));
-  AddRepresentation(rep);
-}
-
 Image::Image(const SkBitmap& bitmap)
     : storage_(new internal::ImageStorage(Image::kImageRepSkia)) {
   internal::ImageRepSkia* rep =
       new internal::ImageRepSkia(new ImageSkia(bitmap));
   AddRepresentation(rep);
 }
 
 #if defined(TOOLKIT_GTK)
 Image::Image(GdkPixbuf* pixbuf)
     : storage_(new internal::ImageStorage(Image::kImageRepGdk)) {
@@ skipping 256 matching lines @@
   }
   return it->second;
 }
 
 void Image::AddRepresentation(internal::ImageRep* rep) const {
   CHECK(storage_.get());
   storage_->representations().insert(std::make_pair(rep->type(), rep));
 }
 
 }  // namespace gfx