Make FilterData an inner class of SVGElementResourceClient

This class is now a proper "implementation detail", so we don't need to
expose it.

Bug: 1028063
Change-Id: I3a6769e2c6d3aa9a2c162f84aa2064526e040369
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2574853Reviewed-by: Stephen Chenney <schenney@chromium.org>
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Cr-Commit-Position: refs/heads/master@{#834276}

third_party/blink/renderer/core/layout/svg/svg_resources.cc

@@ -625,11 +625,20 @@ void SVGResources::ClearMarkers(SVGElement& element,
     marker_resource->RemoveClient(*client);
 }
 
-sk_sp<PaintFilter> FilterData::BuildPaintFilter() {
+class SVGElementResourceClient::FilterData final
+    : public GarbageCollected<SVGElementResourceClient::FilterData> {
+ public:
+  FilterData(FilterEffect* last_effect, SVGFilterGraphNodeMap* node_map)
+      : last_effect_(last_effect), node_map_(node_map) {}
+
+  sk_sp<PaintFilter> BuildPaintFilter() {
     return paint_filter_builder::Build(last_effect_, kInterpolationSpaceSRGB);
-}
+  }
 
-bool FilterData::Invalidate(SVGFilterPrimitiveStandardAttributes& primitive,
+  // Perform a finegrained invalidation of the filter chain for the
+  // specified filter primitive and attribute. Returns false if no
+  // further invalidation is required, otherwise true.
+  bool Invalidate(SVGFilterPrimitiveStandardAttributes& primitive,
                   const QualifiedName& attribute) {
     if (FilterEffect* effect = node_map_->EffectForElement(primitive)) {
       if (!primitive.SetFilterEffectAttribute(effect, attribute))
@@ -637,19 +646,24 @@ bool FilterData::Invalidate(SVGFilterPrimitiveStandardAttributes& primitive,
       node_map_->InvalidateDependentEffects(effect);
     }
     return true;
-}
-
-void FilterData::Trace(Visitor* visitor) const {
-  visitor->Trace(last_effect_);
-  visitor->Trace(node_map_);
-}
+  }
 
-void FilterData::Dispose() {
+  void Dispose() {
     node_map_ = nullptr;
     if (last_effect_)
       last_effect_->DisposeImageFiltersRecursive();
     last_effect_ = nullptr;
-}
+  }
+
+  void Trace(Visitor* visitor) const {
+    visitor->Trace(last_effect_);
+    visitor->Trace(node_map_);
+  }
+
+ private:
+  Member<FilterEffect> last_effect_;
+  Member<SVGFilterGraphNodeMap> node_map_;
+};
 
 SVGElementResourceClient::SVGElementResourceClient(SVGElement* element)
     : element_(element), filter_data_dirty_(false) {}
@@ -731,7 +745,8 @@ void SVGElementResourceClient::FilterPrimitiveChanged(
   MarkFilterDataDirty();
 }
 
-static FilterData* CreateFilterDataWithNodeMap(
+SVGElementResourceClient::FilterData*
+SVGElementResourceClient::CreateFilterDataWithNodeMap(
     FilterEffectBuilder& builder,
     const ReferenceFilterOperation& reference_filter) {
   auto* node_map = MakeGarbageCollected<SVGFilterGraphNodeMap>();

third_party/blink/renderer/core/layout/svg/svg_resources.h

@@ -31,16 +31,16 @@
 namespace blink {
 
 class ComputedStyle;
-class FilterEffect;
+class FilterEffectBuilder;
 class LayoutObject;
 class LayoutSVGResourceClipper;
 class LayoutSVGResourceFilter;
 class LayoutSVGResourceMarker;
 class LayoutSVGResourceMasker;
 class LayoutSVGResourcePaintServer;
+class ReferenceFilterOperation;
 class SVGElement;
 class SVGElementResourceClient;
-class SVGFilterGraphNodeMap;
 
 // Holds a set of resources associated with a LayoutObject
 class SVGResources {
@@ -189,27 +189,6 @@ class SVGResources {
   LayoutSVGResourceContainer* linked_resource_;
 };
 
-class FilterData final : public GarbageCollected<FilterData> {
- public:
-  FilterData(FilterEffect* last_effect, SVGFilterGraphNodeMap* node_map)
-      : last_effect_(last_effect), node_map_(node_map) {}
-
-  sk_sp<PaintFilter> BuildPaintFilter();
-  // Perform a finegrained invalidation of the filter chain for the
-  // specified filter primitive and attribute. Returns false if no
-  // further invalidation is required, otherwise true.
-  bool Invalidate(SVGFilterPrimitiveStandardAttributes& primitive,
-                  const QualifiedName& attribute);
-
-  void Dispose();
-
-  void Trace(Visitor*) const;
-
- private:
-  Member<FilterEffect> last_effect_;
-  Member<SVGFilterGraphNodeMap> node_map_;
-};
-
 class SVGElementResourceClient final
     : public GarbageCollected<SVGElementResourceClient>,
       public SVGResourceClient {
@@ -230,6 +209,12 @@ class SVGElementResourceClient final
   void Trace(Visitor*) const override;
 
  private:
+  class FilterData;
+
+  static FilterData* CreateFilterDataWithNodeMap(
+      FilterEffectBuilder&,
+      const ReferenceFilterOperation&);
+
   Member<SVGElement> element_;
   Member<FilterData> filter_data_;
   bool filter_data_dirty_;