Web Animations: Throw TypeErrors for invalid timing parameters

third_party/WebKit/Source/core/animation/AnimationEffectTiming.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/animation/AnimationEffectTiming.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/UnionTypesCore.h"
 #include "core/animation/AnimationEffect.h"
 #include "core/animation/KeyframeEffect.h"
@@ skipping 73 matching lines @@
     m_parent->updateSpecifiedTiming(timing);
 }
 
 void AnimationEffectTiming::setFill(String fill)
 {
     Timing timing = m_parent->specifiedTiming();
     TimingInput::setFillMode(timing, fill);
     m_parent->updateSpecifiedTiming(timing);
 }
 
-void AnimationEffectTiming::setIterationStart(double iterationStart)
+void AnimationEffectTiming::setIterationStart(double iterationStart, ExceptionState& exceptionState)
 {
     Timing timing = m_parent->specifiedTiming();
-    TimingInput::setIterationStart(timing, iterationStart);
-    m_parent->updateSpecifiedTiming(timing);
+    if (TimingInput::setIterationStart(timing, iterationStart, exceptionState))
+        m_parent->updateSpecifiedTiming(timing);
 }
 
-void AnimationEffectTiming::setIterations(double iterations)
+void AnimationEffectTiming::setIterations(double iterations, ExceptionState& exceptionState)
 {
     Timing timing = m_parent->specifiedTiming();
-    TimingInput::setIterationCount(timing, iterations);
-    m_parent->updateSpecifiedTiming(timing);
+    if (TimingInput::setIterationCount(timing, iterations, exceptionState))
+        m_parent->updateSpecifiedTiming(timing);
 }
 
-void AnimationEffectTiming::setDuration(const UnrestrictedDoubleOrString& durationOrAuto)
+void AnimationEffectTiming::setDuration(const UnrestrictedDoubleOrString& duration, ExceptionState& exceptionState)
 {
-    // Any strings other than "auto" are coerced to "auto".
-    double duration = durationOrAuto.isString() ? std::numeric_limits<double>::quiet_NaN() : durationOrAuto.getAsUnrestrictedDouble();
     Timing timing = m_parent->specifiedTiming();
-    TimingInput::setIterationDuration(timing, duration);
-    m_parent->updateSpecifiedTiming(timing);
+    if (TimingInput::setIterationDuration(timing, duration, exceptionState))
+        m_parent->updateSpecifiedTiming(timing);
 }
 
 void AnimationEffectTiming::setPlaybackRate(double playbackRate)
 {
     Timing timing = m_parent->specifiedTiming();
     TimingInput::setPlaybackRate(timing, playbackRate);
     m_parent->updateSpecifiedTiming(timing);
 }
 
 void AnimationEffectTiming::setDirection(String direction)
@@ skipping 14 matching lines @@
     if (TimingInput::setTimingFunction(timing, easing, nullptr, exceptionState))
         m_parent->updateSpecifiedTiming(timing);
 }
 
 DEFINE_TRACE(AnimationEffectTiming)
 {
     visitor->trace(m_parent);
 }
 
 } // namespace blink