Web Animations API: Remove literal defaults from TimingInput

Source/core/animation/TimingInput.cpp

Index: Source/core/animation/TimingInput.cpp
diff --git a/Source/core/animation/TimingInput.cpp b/Source/core/animation/TimingInput.cpp
index e8e325c643b9729145ecd9130ac38997965e9dc7..605f73fd22b79afbd12eef52a6d8a6eed8608fc5 100644
--- a/Source/core/animation/TimingInput.cpp
+++ b/Source/core/animation/TimingInput.cpp
@@ -107,11 +107,11 @@ Timing TimingInput::convert(const Dictionary& timingInputDictionary)
     // FIXME: This method needs to be refactored to handle invalid
     // null, NaN, Infinity values better.
     // See: http://www.w3.org/TR/WebIDL/#es-double
-    double startDelay = 0;
+    double startDelay = Timing::defaults().startDelay;
     timingInputDictionary.get("delay", startDelay);
     setStartDelay(result, startDelay);
 
-    double endDelay = 0;
+    double endDelay = Timing::defaults().endDelay;
     timingInputDictionary.get("endDelay", endDelay);
     setEndDelay(result, endDelay);
 
@@ -119,11 +119,11 @@ Timing TimingInput::convert(const Dictionary& timingInputDictionary)
     timingInputDictionary.get("fill", fillMode);
     setFillMode(result, fillMode);
 
-    double iterationStart = 0;
+    double iterationStart = Timing::defaults().iterationStart;
     timingInputDictionary.get("iterationStart", iterationStart);
     setIterationStart(result, iterationStart);
 
-    double iterationCount = 1;
+    double iterationCount = Timing::defaults().iterationCount;
     timingInputDictionary.get("iterations", iterationCount);
     setIterationCount(result, iterationCount);
 
@@ -133,7 +133,7 @@ Timing TimingInput::convert(const Dictionary& timingInputDictionary)
         setIterationDuration(result, iterationDuration);
     }
 
-    double playbackRate = 1;
+    double playbackRate = Timing::defaults().playbackRate;
     timingInputDictionary.get("playbackRate", playbackRate);
     setPlaybackRate(result, playbackRate);