Hoist layout update out of SVGGraphicsElement::GetBBox and overrides

third_party/WebKit/Source/core/svg/SVGUseElement.cpp

Index: third_party/WebKit/Source/core/svg/SVGUseElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGUseElement.cpp b/third_party/WebKit/Source/core/svg/SVGUseElement.cpp
index 06e448330609ba9b84ea94f31c58c18b53731136..8577d27b879bb731073368583540b5c9d901e0e3 100644
--- a/third_party/WebKit/Source/core/svg/SVGUseElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGUseElement.cpp
@@ -676,11 +676,7 @@ bool SVGUseElement::SelfHasRelativeLengths() const {
 }
 
 FloatRect SVGUseElement::GetBBox() {
-  GetDocument().UpdateStyleAndLayoutIgnorePendingStylesheets();
-
-  if (!GetLayoutObject())
-    return FloatRect();
-
+  DCHECK(GetLayoutObject());
   LayoutSVGTransformableContainer& transformable_container =
       ToLayoutSVGTransformableContainer(*GetLayoutObject());
   // Don't apply the additional translation if the oBB is invalid.