Bug 1263063 - Part 5: Introduce TimingParams::EndTime(). r=dholbert

MozReview-Commit-ID: 6dpnb65vndl

--HG--
extra : rebase_source : b4c0046b893bf78ebec91d3308fcbfccf48a79d1

dom/animation/KeyframeEffect.cpp

@@ -254,8 +254,7 @@ KeyframeEffectReadOnly::GetComputedTimingAt(
   result.mIterationStart = aTiming.mIterationStart;
 
   result.mActiveDuration = aTiming.ActiveDuration();
-  result.mEndTime = aTiming.mDelay + result.mActiveDuration +
-                    aTiming.mEndDelay;
+  result.mEndTime = aTiming.EndTime();
   result.mFill = aTiming.mFill == dom::FillMode::Auto ?
                  dom::FillMode::None :
                  aTiming.mFill;

dom/animation/TimingParams.h

@@ -112,6 +112,11 @@ struct TimingParams
     return mDuration->MultDouble(mIterations);
   }
 
+  StickyTimeDuration EndTime() const
+  {
+    return mDelay + ActiveDuration() + mEndDelay;
+  }
+
   bool operator==(const TimingParams& aOther) const;
   bool operator!=(const TimingParams& aOther) const
   {