InlinedVisitor: Migrate frame to use inlined tracing

Source/core/frame/DOMTimerCoordinator.h

 // Copyright 2015 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 DOMTimerCoordinator_h
 #define DOMTimerCoordinator_h
 
 #include "platform/heap/Handle.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassOwnPtr.h"
@@ skipping 31 matching lines @@
     // repeating timers, are throttled. Timer nesting level tracks the
     // number of linked timers or repetitions of a timer. See
     // https://html.spec.whatwg.org/#timers
     int timerNestingLevel() { return m_timerNestingLevel; }
 
     // Sets the timer nesting level. Set when a timer executes so that
     // any timers created while the timer is executing will incur a
     // deeper timer nesting level, see DOMTimer::DOMTimer.
     void setTimerNestingLevel(int level) { m_timerNestingLevel = level; }
 
-    void trace(Visitor*); // Oilpan.
+    DECLARE_TRACE(); // Oilpan.

[haraken, 2015/02/24 08:47:26]

Remove the comment.

 
 private:
     int nextID();
 
     using TimeoutMap = WillBeHeapHashMap<int, RefPtrWillBeMember<DOMTimer>>;
     TimeoutMap m_timers;
 
     int m_circularSequentialID;
     int m_timerNestingLevel;
 };
 
 } // namespace blink
 
 #endif // DOMTimerCoordinator_h