Revert of Tracking filter mutation via SVGElementProxy

third_party/WebKit/Source/core/dom/Document.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 453 matching lines @@
   bool gotoAnchorNeededAfterStylesheetsLoad() {
     return m_gotoAnchorNeededAfterStylesheetsLoad;
   }
   void setGotoAnchorNeededAfterStylesheetsLoad(bool b) {
     m_gotoAnchorNeededAfterStylesheetsLoad = b;
   }
 
   void scheduleUseShadowTreeUpdate(SVGUseElement&);
   void unscheduleUseShadowTreeUpdate(SVGUseElement&);
 
+  // FIXME: SVG filters should change to store the filter on the ComputedStyle
+  // instead of the LayoutObject so we can get rid of this hack.
+  void scheduleSVGFilterLayerUpdateHack(Element&);
+  void unscheduleSVGFilterLayerUpdateHack(Element&);
+
   void evaluateMediaQueryList();
 
   FormController& formController();
   DocumentState* formElementsState() const;
   void setStateForNewFormElements(const Vector<String>&);
 
   FrameView* view() const;                       // can be null
   LocalFrame* frame() const { return m_frame; }  // can be null
   FrameHost* frameHost() const;                  // can be null
   Page* page() const;                            // can be null
@@ skipping 739 matching lines @@
   void setHasViewportUnits() { m_hasViewportUnits = true; }
   bool hasViewportUnits() const { return m_hasViewportUnits; }
   void notifyResizeForViewportUnits();
 
   void updateStyleInvalidationIfNeeded();
 
   DECLARE_VIRTUAL_TRACE();
 
   DECLARE_VIRTUAL_TRACE_WRAPPERS();
 
+  bool hasSVGFilterElementsRequiringLayerUpdate() const {
+    return m_layerUpdateSVGFilterElements.size();
+  }
+
   AtomicString convertLocalName(const AtomicString&);
 
   void platformColorsChanged();
 
   DOMTimerCoordinator* timers() final;
 
   v8::Local<v8::Object> wrap(v8::Isolate*,
                              v8::Local<v8::Object> creationContext) override;
   v8::Local<v8::Object> associateWithWrapper(
       v8::Isolate*,
@@ skipping 106 matching lines @@
     return m_lifecycle.state() == DocumentLifecycle::VisualUpdatePending;
   }
 
   bool shouldScheduleLayoutTreeUpdate() const;
   void scheduleLayoutTreeUpdate();
 
   bool needsFullLayoutTreeUpdate() const;
 
   void inheritHtmlAndBodyElementStyles(StyleRecalcChange);
 
+  bool dirtyElementsForLayerUpdate();
+
   void updateUseShadowTreesIfNeeded();
   void evaluateMediaQueryListIfNeeded();
 
   void updateStyle();
   void notifyLayoutTreeOfSubtreeChanges();
 
   void detachParser();
 
   void beginLifecycleUpdatesIfRenderingReady();
 
@@ skipping 260 matching lines @@
 
   Member<DocumentTimeline> m_timeline;
   Member<CompositorPendingAnimations> m_compositorPendingAnimations;
 
   Member<Document> m_templateDocument;
   Member<Document> m_templateDocumentHost;
 
   TaskRunnerTimer<Document> m_didAssociateFormControlsTimer;
 
   HeapHashSet<Member<SVGUseElement>> m_useElementsNeedingUpdate;
+  HeapHashSet<Member<Element>> m_layerUpdateSVGFilterElements;
 
   DOMTimerCoordinator m_timers;
 
   bool m_hasViewportUnits;
 
   ParserSynchronizationPolicy m_parserSyncPolicy;
 
   HostsUsingFeatures::Value m_hostsUsingFeaturesValue;
 
   ClientHintsPreferences m_clientHintsPreferences;
@@ skipping 62 matching lines @@
 DEFINE_TYPE_CASTS(TreeScope, Document, document, true, true);
 
 }  // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 CORE_EXPORT void showLiveDocumentInstances();
 #endif
 
 #endif  // Document_h