Separate repaint and layout requirements of StyleDifference (Step 4)

Source/core/rendering/style/SVGRenderStyle.cpp

Index: Source/core/rendering/style/SVGRenderStyle.cpp
diff --git a/Source/core/rendering/style/SVGRenderStyle.cpp b/Source/core/rendering/style/SVGRenderStyle.cpp
index 0a66df6bcd47a60fcc836cc5b00bbdf6e417755e..2e0646ed5879b58d19e9df5d47daef960de821ca 100644
--- a/Source/core/rendering/style/SVGRenderStyle.cpp
+++ b/Source/core/rendering/style/SVGRenderStyle.cpp
@@ -122,15 +122,17 @@ StyleDifference SVGRenderStyle::diff(const SVGRenderStyle* other) const
 {
     StyleDifference styleDifference;
 
-    if (diffNeedsLayout(other))
+    if (diffNeedsLayoutAndRepaint(other)) {
         styleDifference.setNeedsFullLayout();
-    if (diffNeedsRepaint(other))
         styleDifference.setNeedsRepaintObject();
+    } else if (diffNeedsRepaint(other)) {
+        styleDifference.setNeedsRepaintObject();
+    }
 
     return styleDifference;
 }
 
-bool SVGRenderStyle::diffNeedsLayout(const SVGRenderStyle* other) const
+bool SVGRenderStyle::diffNeedsLayoutAndRepaint(const SVGRenderStyle* other) const
 {
     // If resources change, we need a relayout, as the presence of resources influences the repaint rect.
     if (resources != other->resources)