[SPInvalidation] Fix paint offset issue of descendants of composited svg root

third_party/WebKit/Source/core/paint/ObjectPaintProperties.h

Index: third_party/WebKit/Source/core/paint/ObjectPaintProperties.h
diff --git a/third_party/WebKit/Source/core/paint/ObjectPaintProperties.h b/third_party/WebKit/Source/core/paint/ObjectPaintProperties.h
index 0e47c7782c4516f1107ac74f67890ad6a2fd1bec..ebd6748ef64b484df9bfc08a15ed107836ead902 100644
--- a/third_party/WebKit/Source/core/paint/ObjectPaintProperties.h
+++ b/third_party/WebKit/Source/core/paint/ObjectPaintProperties.h
@@ -101,10 +101,12 @@ public:
         const ScrollPaintPropertyNode* scroll;
     };
     const LocalBorderBoxProperties* localBorderBoxProperties() const { return m_localBorderBoxProperties.get(); }
-    // ContentsProperties is the GeometryPropertyTreeState that is the same as in
+    // ContentsPropertyTreeState is the GeometryPropertyTreeState that is the same as in
     // localBorderBoxProperties, except that it is inside any clips and scrolls caused by this
     // object. This GeometryPropertyTreeState is suitable as the destination for paint invalidation.
-    void getContentsProperties(GeometryPropertyTreeState&) const;
+    // |paintOffsetFromState| is the offset from the GeometryPropertyTreeState to this object's
+    // contents space.
+    void getContentsPropertyTreeState(GeometryPropertyTreeState&, LayoutPoint& paintOffsetFromState) const;
 
     void clearPaintOffsetTranslation() { m_paintOffsetTranslation = nullptr; }
     void clearTransform() { m_transform = nullptr; }