Count usage of #svgView(...) and plain SVG <view> targets

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

Index: third_party/WebKit/Source/core/svg/SVGSVGElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGSVGElement.cpp b/third_party/WebKit/Source/core/svg/SVGSVGElement.cpp
index ebcd2f6c5e610bcfdd5b7d26d8d122dd004cb891..d28b4b6165294a04c9f70fa229dd5e064dfe76f0 100644
--- a/third_party/WebKit/Source/core/svg/SVGSVGElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGSVGElement.cpp
@@ -701,10 +701,12 @@ void SVGSVGElement::setupInitialView(const String& fragmentIdentifier, Element*
 
         view->inheritViewAttributesFromElement(this);
 
-        if (view->parseViewSpec(fragmentIdentifier))
+        if (view->parseViewSpec(fragmentIdentifier)) {
+            UseCounter::count(document(), UseCounter::SVGSVGElementFragmentSVGView);
             m_useCurrentView = true;
-        else
+        } else {
             view->reset();
+        }
 
         if (layoutObject && (hadUseCurrentView || m_useCurrentView))
             markForLayoutAndParentResourceInvalidation(layoutObject);
@@ -745,6 +747,7 @@ void SVGSVGElement::inheritViewAttributes(SVGViewElement* viewElement)
 {
     SVGViewSpec* view = currentView();
     m_useCurrentView = true;
+    UseCounter::count(document(), UseCounter::SVGSVGElementFragmentSVGViewElement);
     view->inheritViewAttributesFromElement(this);
     view->inheritViewAttributesFromElement(viewElement);
 }