Devtools Animations: Don't wait for empty transitions to start

third_party/WebKit/Source/core/inspector/InspectorInstrumentation.idl

 /*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
@@ skipping 399 matching lines @@
     [AsyncCallTracker, Inline=FastReturn]
     InspectorInstrumentationCookie traceAsyncCallbackStarting([Keep] ExecutionContext*, int operationId);
 
     [AsyncCallTracker, Inline=FastReturn]
     void traceAsyncCallbackCompleted(const InspectorInstrumentationCookie&);
 
     [Animation, Inline=FastReturn]
     void didCreateAnimation(Document*, unsigned);
 
     [Animation, Inline=FastReturn]
+    void didCancelAnimation(Document*, unsigned);
+
+    [Animation, Inline=FastReturn]
     void didStartAnimation(Document*, Animation* player);
 }
 
 interface InspectorConsoleInstrumentation {
 
 #include "core/inspector/ScriptArguments.h"
 
 class ConsoleMessage;
 
     [Console]
@@ skipping 12 matching lines @@
 interface InspectorOverrides {
     [CSS, Inline=FastReturn]
     bool forcePseudoState([Keep] Element* element, CSSSelector::PseudoType pseudoState);
 
     [Worker, Inline=FastReturn]
     bool shouldPauseDedicatedWorkerOnStart(ExecutionContext* context);
 
     [Resource, Inline=FastReturn]
     bool shouldForceCORSPreflight(Document*);
 }