Tidy up instance time handling in SVGSMILElement

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

Index: third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp b/third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp
index a93258afa8a811d2cfe65c3f90397f1805a5575f..3f48d92b91eabd77418000f1bba3feb192ba7018 100644
--- a/third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp
@@ -253,24 +253,14 @@ float SVGAnimationElement::getSimpleDuration(
   return clampTo<float>(duration.value());
 }
 
-void SVGAnimationElement::beginElement() {
-  beginElementAt(0);
-}
-
 void SVGAnimationElement::beginElementAt(float offset) {
-  ASSERT(std::isfinite(offset));
-  SMILTime elapsed = this->elapsed();
-  addBeginTime(elapsed, elapsed + offset, SMILTimeWithOrigin::ScriptOrigin);
-}
-
-void SVGAnimationElement::endElement() {
-  endElementAt(0);
+  DCHECK(std::isfinite(offset));
+  addInstanceTime(Begin, elapsed() + offset, SMILTimeWithOrigin::ScriptOrigin);
 }
 
 void SVGAnimationElement::endElementAt(float offset) {
-  ASSERT(std::isfinite(offset));
-  SMILTime elapsed = this->elapsed();
-  addEndTime(elapsed, elapsed + offset, SMILTimeWithOrigin::ScriptOrigin);
+  DCHECK(std::isfinite(offset));
+  addInstanceTime(End, elapsed() + offset, SMILTimeWithOrigin::ScriptOrigin);
 }
 
 void SVGAnimationElement::updateAnimationMode() {