Break StyleImage dependency on LayoutObject

third_party/WebKit/Source/modules/csspaint/CSSPaintImageGeneratorImpl.cpp

 // Copyright 2016 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 "modules/csspaint/CSSPaintImageGeneratorImpl.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "modules/csspaint/CSSPaintDefinition.h"
 #include "modules/csspaint/PaintWorklet.h"
 #include "modules/csspaint/WindowPaintWorklet.h"
 #include "platform/graphics/Image.h"
 
 namespace blink {
 
-CSSPaintImageGenerator* CSSPaintImageGeneratorImpl::Create(const String& name,
-                                                           Document& document,
-                                                           Observer* observer) {
+CSSPaintImageGenerator* CSSPaintImageGeneratorImpl::Create(
+    const String& name,
+    const Document& document,
+    Observer* observer) {
   LocalDOMWindow* dom_window = document.domWindow();
   PaintWorklet* paint_worklet =
       WindowPaintWorklet::From(*dom_window).paintWorklet();
 
   CSSPaintDefinition* paint_definition = paint_worklet->FindDefinition(name);
   CSSPaintImageGeneratorImpl* generator;
   if (!paint_definition) {
     generator = new CSSPaintImageGeneratorImpl(observer);
     paint_worklet->AddPendingGenerator(name, generator);
   } else {
@@ skipping 14 matching lines @@
 
 void CSSPaintImageGeneratorImpl::SetDefinition(CSSPaintDefinition* definition) {
   DCHECK(!definition_);
   definition_ = definition;
 
   DCHECK(observer_);
   observer_->PaintImageGeneratorReady();
 }
 
 PassRefPtr<Image> CSSPaintImageGeneratorImpl::Paint(
-    const LayoutObject& layout_object,
+    const ImageResourceObserver& observer,
     const IntSize& size,
     const CSSStyleValueVector* data) {
-  return definition_ ? definition_->Paint(layout_object, size, data) : nullptr;
+  return definition_ ? definition_->Paint(observer, size, data) : nullptr;
 }
 
 const Vector<CSSPropertyID>&
 CSSPaintImageGeneratorImpl::NativeInvalidationProperties() const {
   DEFINE_STATIC_LOCAL(Vector<CSSPropertyID>, empty_vector, ());
   return definition_ ? definition_->NativeInvalidationProperties()
                      : empty_vector;
 }
 
 const Vector<AtomicString>&
@@ skipping 17 matching lines @@
   return definition_;
 }
 
 DEFINE_TRACE(CSSPaintImageGeneratorImpl) {
   visitor->Trace(definition_);
   visitor->Trace(observer_);
   CSSPaintImageGenerator::Trace(visitor);
 }
 
 }  // namespace blink