Drop ComputedStyle argument to SVGResourcesCache::ClientStyleChanged

This is always the current ComputedStyle for the LayoutObject that is
passed, so just access it via the LayoutObject.

Bug: 1028063
Change-Id: I2579603bdbb86a17fe9663d09d0b88563cb3676c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2455746
Commit-Queue: Stephen Chenney <schenney@chromium.org>
Auto-Submit: Fredrik Söderquist <fs@opera.com>
Reviewed-by: Stephen Chenney <schenney@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814647}

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

@@ -141,7 +141,7 @@ void LayoutSVGBlock::StyleDidChange(StyleDifference diff,
 
   LayoutBlock::StyleDidChange(diff, old_style);
   SVGResources::UpdateClipPathFilterMask(*GetElement(), old_style, StyleRef());
-  SVGResourcesCache::ClientStyleChanged(*this, diff, StyleRef());
+  SVGResourcesCache::ClientStyleChanged(*this, diff);
 }
 
 void LayoutSVGBlock::MapLocalToAncestor(const LayoutBoxModelObject* ancestor,

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

@@ -141,7 +141,7 @@ void LayoutSVGInline::StyleDidChange(StyleDifference diff,
   SVGResources::UpdateClipPathFilterMask(To<SVGElement>(*GetNode()), old_style,
                                          StyleRef());
   SVGResources::UpdatePaints(To<SVGElement>(*GetNode()), old_style, StyleRef());
-  SVGResourcesCache::ClientStyleChanged(*this, diff, StyleRef());
+  SVGResourcesCache::ClientStyleChanged(*this, diff);
 }
 
 void LayoutSVGInline::AddChild(LayoutObject* child,

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

@@ -172,7 +172,7 @@ void LayoutSVGModelObject::StyleDidChange(StyleDifference diff,
 
   LayoutObject::StyleDidChange(diff, old_style);
   SVGResources::UpdateClipPathFilterMask(*GetElement(), old_style, StyleRef());
-  SVGResourcesCache::ClientStyleChanged(*this, diff, StyleRef());
+  SVGResourcesCache::ClientStyleChanged(*this, diff);
 }
 
 void LayoutSVGModelObject::InsertedIntoTree() {

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

@@ -385,7 +385,7 @@ void LayoutSVGRoot::StyleDidChange(StyleDifference diff,
   LayoutReplaced::StyleDidChange(diff, old_style);
   SVGResources::UpdateClipPathFilterMask(To<SVGSVGElement>(*GetNode()),
                                          old_style, StyleRef());
-  SVGResourcesCache::ClientStyleChanged(*this, diff, StyleRef());
+  SVGResourcesCache::ClientStyleChanged(*this, diff);
 }
 
 bool LayoutSVGRoot::IsChildAllowed(LayoutObject* child,

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

@@ -100,8 +100,7 @@ static inline bool IsLayoutObjectOfResourceContainer(
 }
 
 void SVGResourcesCache::ClientStyleChanged(LayoutObject& layout_object,
-                                           StyleDifference diff,
-                                           const ComputedStyle& new_style) {
+                                           StyleDifference diff) {
   DCHECK(layout_object.GetNode());
   DCHECK(layout_object.GetNode()->IsSVGElement());
 
@@ -119,8 +118,10 @@ void SVGResourcesCache::ClientStyleChanged(LayoutObject& layout_object,
   // oldStyle/newStyle to see which resources changed to be able to selectively
   // rebuild individual resources, instead of all of them.
   SVGResourcesCache& cache = ResourcesCache(layout_object.GetDocument());
-  if (cache.UpdateResourcesFromLayoutObject(layout_object, new_style))
+  if (cache.UpdateResourcesFromLayoutObject(layout_object,
+                                            layout_object.StyleRef())) {
     layout_object.SetNeedsPaintPropertyUpdate();
+  }
 
   // If this layoutObject is the child of ResourceContainer and it require
   // repainting that changes of CSS properties such as 'visibility',

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

@@ -53,9 +53,7 @@ class SVGResourcesCache {
   static void ClientDestroyed(LayoutObject&);
 
   // Called from all SVG layoutObjects styleDidChange() methods.
-  static void ClientStyleChanged(LayoutObject&,
-                                 StyleDifference,
-                                 const ComputedStyle& new_style);
+  static void ClientStyleChanged(LayoutObject&, StyleDifference);
 
   // Called when the target element of a resource referenced by the
   // LayoutObject may have changed.