Use-count when SMIL animation renders a frame

third_party/WebKit/Source/core/svg/animation/SMILTimeContainer.cpp

Index: third_party/WebKit/Source/core/svg/animation/SMILTimeContainer.cpp
diff --git a/third_party/WebKit/Source/core/svg/animation/SMILTimeContainer.cpp b/third_party/WebKit/Source/core/svg/animation/SMILTimeContainer.cpp
index 2d3d2d3c6140763cd1bbebf5a2f1ebfc18ec43eb..c4dfe920ac08bd46a8587efb14d8b815fbb4b065 100644
--- a/third_party/WebKit/Source/core/svg/animation/SMILTimeContainer.cpp
+++ b/third_party/WebKit/Source/core/svg/animation/SMILTimeContainer.cpp
@@ -30,6 +30,7 @@
 #include "core/dom/ElementTraversal.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
+#include "core/frame/UseCounter.h"
 #include "core/svg/SVGSVGElement.h"
 #include "core/svg/animation/SVGSMILElement.h"
 #include <algorithm>
@@ -512,6 +513,8 @@ SMILTime SMILTimeContainer::updateAnimations(SMILTime elapsed, bool seekToTime)
         return earliestFireTime;
     }
 
+    UseCounter::count(&document(), UseCounter::SVGSMILAnimationAppliedEffect);
+
     // Apply results to target elements.
     for (unsigned i = 0; i < animationsToApplySize; ++i)
         animationsToApply[i]->applyResultsToTarget();