Throw error if timeConstant is not positive for setTargetAtTime

third_party/WebKit/Source/modules/webaudio/AudioParamTimeline.cpp

Index: third_party/WebKit/Source/modules/webaudio/AudioParamTimeline.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/AudioParamTimeline.cpp b/third_party/WebKit/Source/modules/webaudio/AudioParamTimeline.cpp
index 58646b6be17ab91a0ad3748670b4887d585496d8..8b5aae49fc2d1c6a39695d69c4e656457e67507d 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioParamTimeline.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/AudioParamTimeline.cpp
@@ -179,7 +179,7 @@ void AudioParamTimeline::setTargetAtTime(float target, double time, double timeC
     ASSERT(isMainThread());
 
     if (!isNonNegativeAudioParamTime(time, exceptionState)
-        || !isNonNegativeAudioParamTime(timeConstant, exceptionState, "Time constant"))
+        || !isPositiveAudioParamTime(timeConstant, exceptionState, "Time constant"))
         return;
 
     insertEvent(ParamEvent::createSetTargetEvent(target, time, timeConstant), exceptionState);