Remove unused gfx::Image constructor which takes in ImageSkiaRep

ui/gfx/image/image.h

 // 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.
 
 // An Image wraps an image any flavor, be it platform-native GdkBitmap/NSImage,
 // or a SkBitmap. This also provides easy conversion to other image types
 // through operator overloading. It will cache the converted representations
 // internally to prevent double-conversion.
 //
 // The lifetime of both the initial representation and any converted ones are
@@ skipping 19 matching lines @@
 
 class SkBitmap;
 
 namespace {
 class ImageTest;
 class ImageMacTest;
 }
 
 namespace gfx {
 class ImageSkia;
-class ImageSkiaRep;
 
 #if defined(TOOLKIT_GTK)
 class CairoCachedSurface;
 #endif
 
 namespace internal {
 class ImageRep;
 class ImageStorage;
 }
 
@@ skipping 15 matching lines @@
   // Creates a new image by copying the PNG-encoded input for use as the default
   // representation. For example (from an std::vector):
   // std::vector<unsigned char> png = ...;
   // gfx::Image image(&png.front(), png.size());
   Image(const unsigned char* png, size_t input_size);
 
   // Creates a new image by copying the ImageSkia for use as the default
   // representation.
   explicit Image(const ImageSkia& image);
 
-  // Creates a new image by copying the image rep for use as the default
-  // representation.
-  explicit Image(const ImageSkiaRep& image_rep);
-
   // Creates a new image by copying the bitmap for use as the default
   // representation.
   // TODO(pkotwicz): Get rid of this constructor.
   explicit Image(const SkBitmap& bitmap);
 
 #if defined(TOOLKIT_GTK)
   // Does not increase |pixbuf|'s reference count; expects to take ownership.
   explicit Image(GdkPixbuf* pixbuf);
 #elif defined(OS_MACOSX)
   // Does not retain |image|; expects to take ownership.
@@ skipping 87 matching lines @@
   // be cheaply copied.
   scoped_refptr<internal::ImageStorage> storage_;
 
   friend class ::ImageTest;
   friend class ::ImageMacTest;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_IMAGE_IMAGE_H_