Break StyleImage dependency on LayoutObject

third_party/WebKit/Source/core/style/StyleGeneratedImage.cpp

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 41 matching lines @@
     FloatSize unzoomed_default_object_size(default_object_size);
     unzoomed_default_object_size.Scale(1 / multiplier);
     return ApplyZoom(LayoutSize(image_generator_value_->FixedSize(
                          document, unzoomed_default_object_size)),
                      multiplier);
   }
 
   return default_object_size;
 }
 
-void StyleGeneratedImage::AddClient(LayoutObject* layout_object) {
-  image_generator_value_->AddClient(layout_object, IntSize());
+void StyleGeneratedImage::AddClient(ImageResourceObserver* observer) {
+  image_generator_value_->AddClient(observer, IntSize());
 }
 
-void StyleGeneratedImage::RemoveClient(LayoutObject* layout_object) {
-  image_generator_value_->RemoveClient(layout_object);
+void StyleGeneratedImage::RemoveClient(ImageResourceObserver* observer) {
+  image_generator_value_->RemoveClient(observer);
 }
 
 PassRefPtr<Image> StyleGeneratedImage::GetImage(
-    const LayoutObject& layout_object,
+    const ImageResourceObserver& observer,
+    const Document& document,
+    const ComputedStyle& style,
     const IntSize& size) const {
-  return image_generator_value_->GetImage(layout_object, size);
+  return image_generator_value_->GetImage(observer, document, style, size);
 }
 
 bool StyleGeneratedImage::KnownToBeOpaque(const Document& document,
                                           const ComputedStyle& style) const {
   return image_generator_value_->KnownToBeOpaque(document, style);
 }
 
 DEFINE_TRACE(StyleGeneratedImage) {
   visitor->Trace(image_generator_value_);
   StyleImage::Trace(visitor);
 }
 
 }  // namespace blink