Common up SVG transform "change detection" (classification)

third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.cpp

Index: third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.cpp
diff --git a/third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.cpp b/third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.cpp
index 899b8c3f6cf7e7d3c063718fb6e8724e246e153c..1e62ca9fcd732c047ec41330e5413b32b2ead2ca 100644
--- a/third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.cpp
+++ b/third_party/WebKit/Source/core/layout/svg/LayoutSVGContainer.cpp
@@ -55,9 +55,9 @@ void LayoutSVGContainer::layout()
     calcViewport();
 
     // Allow LayoutSVGTransformableContainer to update its transform.
-    TransformChange transformChange = calculateLocalTransform();
+    SVGTransformChange transformChange = calculateLocalTransform();
     m_didScreenScaleFactorChange =
-        transformChange == TransformChange::Full || SVGLayoutSupport::screenScaleFactorChanged(parent());
+        transformChange == SVGTransformChange::Full || SVGLayoutSupport::screenScaleFactorChanged(parent());
 
     // LayoutSVGViewportContainer needs to set the 'layout size changed' flag.
     determineIfLayoutSizeChanged();
@@ -73,7 +73,7 @@ void LayoutSVGContainer::layout()
     if (everHadLayout() && needsLayout())
         SVGResourcesCache::clientLayoutChanged(this);
 
-    if (m_needsBoundariesUpdate || transformChange != TransformChange::None) {
+    if (m_needsBoundariesUpdate || transformChange != SVGTransformChange::None) {
         updateCachedBoundaries();
         m_needsBoundariesUpdate = false;
 
@@ -201,4 +201,9 @@ bool LayoutSVGContainer::nodeAtFloatPoint(HitTestResult& result, const FloatPoin
     return false;
 }
 
+SVGTransformChange LayoutSVGContainer::calculateLocalTransform()
+{
+    return SVGTransformChange::None;
+}
+
 } // namespace blink