Web Animations: Coalesce constructors where possible.

third_party/WebKit/Source/core/animation/TimingInput.h

 // 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.
 
 #ifndef TimingInput_h
 #define TimingInput_h
 
 #include "core/CoreExport.h"
 #include "core/animation/Timing.h"
 #include "platform/wtf/Allocator.h"
 
 namespace blink {
 
 class Document;
 class ExceptionState;
 class KeyframeEffectOptions;
 class UnrestrictedDoubleOrString;
+class UnrestrictedDoubleOrKeyframeEffectOptions;
 
 class CORE_EXPORT TimingInput {
   STATIC_ONLY(TimingInput);
 
  public:
+  static bool Convert(const UnrestrictedDoubleOrKeyframeEffectOptions&,
+                      Timing& timing_output,
+                      Document*,
+                      ExceptionState&);
   static bool Convert(const KeyframeEffectOptions& timing_input,
                       Timing& timing_output,
                       Document*,
                       ExceptionState&);
   static bool Convert(double duration, Timing& timing_output, ExceptionState&);
 
   static void SetStartDelay(Timing&, double start_delay);
   static void SetEndDelay(Timing&, double end_delay);
   static void SetFillMode(Timing&, const String& fill_mode);
   static bool SetIterationStart(Timing&,
                                 double iteration_start,
                                 ExceptionState&);
   static bool SetIterationCount(Timing&,
                                 double iteration_count,
                                 ExceptionState&);
   static bool SetIterationDuration(Timing&,
                                    const UnrestrictedDoubleOrString&,
                                    ExceptionState&);
   static void SetPlaybackRate(Timing&, double playback_rate);
   static void SetPlaybackDirection(Timing&, const String& direction);
   static bool SetTimingFunction(Timing&,
                                 const String& timing_function_string,
                                 Document*,
                                 ExceptionState&);
 };
 
 }  // namespace blink
 
 #endif