Revert of Add stable id to PaintImage.

third_party/WebKit/Source/platform/DragImage.cpp

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 97 matching lines @@
   ASSERT(opacity >= 0 && opacity <= 1);
   paint.setAlpha(opacity * 255);
   paint.setFilterQuality(interpolation_quality == kInterpolationNone
                              ? kNone_SkFilterQuality
                              : kHigh_SkFilterQuality);
 
   SkCanvas* canvas = surface->getCanvas();
   canvas->concat(AffineTransformToSkMatrix(transform));
   canvas->drawImage(image.sk_image(), 0, 0, &paint);
 
-  return PaintImage(image.stable_id(), surface->makeImageSnapshot(),
-                    image.animation_type(), image.completion_state());
+  return PaintImage(surface->makeImageSnapshot(), image.animation_type(),
+                    image.completion_state());
 }
 
 FloatSize DragImage::ClampedImageScale(const IntSize& image_size,
                                        const IntSize& size,
                                        const IntSize& max_size) {
   // Non-uniform scaling for size mapping.
   FloatSize image_scale(
       static_cast<float>(size.Width()) / image_size.Width(),
       static_cast<float>(size.Height()) / image_size.Height());
 
@@ skipping 191 matching lines @@
       interpolation_quality_ == kInterpolationNone
           ? skia::ImageOperations::RESIZE_BOX
           : skia::ImageOperations::RESIZE_LANCZOS3;
   int image_width = scale_x * bitmap_.width();
   int image_height = scale_y * bitmap_.height();
   bitmap_ = skia::ImageOperations::Resize(bitmap_, resize_method, image_width,
                                           image_height);
 }
 
 }  // namespace blink