DOM-based SVG resource tracking

third_party/WebKit/Source/core/svg/SVGElement.cpp

Index: third_party/WebKit/Source/core/svg/SVGElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGElement.cpp b/third_party/WebKit/Source/core/svg/SVGElement.cpp
index 7b4e56a8a23972bcac4f9cb85c3c094d1bd6504e..eefbe64c738cf36b0b220cfb899ca45afb3aaf5a 100644
--- a/third_party/WebKit/Source/core/svg/SVGElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGElement.cpp
@@ -50,7 +50,6 @@
 #include "core/svg/SVGGraphicsElement.h"
 #include "core/svg/SVGSVGElement.h"
 #include "core/svg/SVGTitleElement.h"
-#include "core/svg/SVGTreeScopeResources.h"
 #include "core/svg/SVGUseElement.h"
 #include "core/svg/properties/SVGProperty.h"
 #include "platform/wtf/AutoReset.h"
@@ -110,13 +109,6 @@ void SVGElement::WillRecalcStyle(StyleRecalcChange change) {
     SvgRareData()->SetNeedsOverrideComputedStyleUpdate();
 }
 
-void SVGElement::BuildPendingResourcesIfNeeded() {
-  if (!NeedsPendingResourceHandling() || !isConnected() || InUseShadowTree())
-    return;
-  GetTreeScope().EnsureSVGTreeScopedResources().NotifyResourceAvailable(
-      GetIdAttribute());
-}
-
 SVGElementRareData* SVGElement::EnsureSVGRareData() {
   if (HasSVGRareData())
     return SvgRareData();
@@ -407,7 +399,6 @@ Node::InsertionNotificationRequest SVGElement::InsertedInto(
     ContainerNode* root_parent) {
   Element::InsertedInto(root_parent);
   UpdateRelativeLengthsInformation();
-  BuildPendingResourcesIfNeeded();
 
   if (hasAttribute(nonceAttr) && getAttribute(nonceAttr) != g_empty_atom) {
     setNonce(getAttribute(nonceAttr));
@@ -417,7 +408,6 @@ Node::InsertionNotificationRequest SVGElement::InsertedInto(
       setAttribute(nonceAttr, g_empty_atom);
     }
   }
-
   return kInsertionDone;
 }
 
@@ -971,16 +961,6 @@ void SVGElement::AttributeChanged(const AttributeModificationParams& params) {
 
   if (params.name == HTMLNames::idAttr) {
     RebuildAllIncomingReferences();
-
-    LayoutObject* object = GetLayoutObject();
-    // Notify resources about id changes, this is important as we cache
-    // resources by id in SVGDocumentExtensions
-    if (object && object->IsSVGResourceContainer()) {
-      ToLayoutSVGResourceContainer(object)->IdChanged(params.old_value,
-                                                      params.new_value);
-    }
-    if (isConnected())
-      BuildPendingResourcesIfNeeded();
     InvalidateInstances();
     return;
   }