The ScaleImageSkiaRep function which attempts to scale the image to the desired scale should not do…

ui/gfx/image/image_skia.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_skia.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 
@@ skipping 38 matching lines @@
 
   bool operator()(const ImageSkiaRep& rep) const {
     return rep.scale() == scale_;
   }
 
  private:
   float scale_;
 };
 
 ImageSkiaRep ScaleImageSkiaRep(const ImageSkiaRep& rep, float target_scale) {
-  DCHECK_NE(rep.scale(), target_scale);
-  if (rep.is_null())
+  if (rep.is_null() || rep.scale() == target_scale)
     return rep;
 
   gfx::Size scaled_size = ToCeiledSize(
       gfx::ScaleSize(rep.pixel_size(), target_scale / rep.scale()));
   return ImageSkiaRep(skia::ImageOperations::Resize(
       rep.sk_bitmap(),
       skia::ImageOperations::RESIZE_LANCZOS3,
       scaled_size.width(),
       scaled_size.height()), target_scale);
 }
@@ skipping 422 matching lines @@
 bool ImageSkia::CanModify() const {
   return !storage_.get() || storage_->CanModify();
 }
 
 void ImageSkia::DetachStorageFromThread() {
   if (storage_.get())
     storage_->DetachFromThread();
 }
 
 }  // namespace gfx