Replace ASSERT, ASSERT_NOT_REACHED, and RELEASE_ASSERT in platform/graphics

third_party/WebKit/Source/platform/graphics/Image.cpp

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, 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
@@ skipping 38 matching lines @@
 #include <tuple>
 
 namespace blink {
 
 Image::Image(ImageObserver* observer)
     : image_observer_(observer), image_observer_disabled_(false) {}
 
 Image::~Image() {}
 
 Image* Image::NullImage() {
-  ASSERT(IsMainThread());
+  DCHECK(IsMainThread());
   DEFINE_STATIC_REF(Image, null_image, (BitmapImage::Create()));
   return null_image;
 }
 
 PassRefPtr<Image> Image::LoadPlatformResource(const char* name) {
   const WebData& resource = Platform::Current()->LoadResource(name);
   if (resource.IsEmpty())
     return Image::NullImage();
 
   RefPtr<Image> image = BitmapImage::Create();
@@ skipping 310 matching lines @@
   FloatRect subset = dest;
   subset.SetX((dest.X() - tile.X()) / scale.Width());
   subset.SetY((dest.Y() - tile.Y()) / scale.Height());
   subset.SetWidth(dest.Width() / scale.Width());
   subset.SetHeight(dest.Height() / scale.Height());
 
   return subset;
 }
 
 }  // namespace blink