Remove setting cancelBubble to false.

third_party/WebKit/Source/core/frame/Deprecation.cpp

 // Copyright 2016 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/frame/Deprecation.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/FrameHost.h"
@@ skipping 389 matching lines @@
 
     case UseCounter::CSSSelectorInternalMediaControlsTextTrackList:
     case UseCounter::CSSSelectorInternalMediaControlsTextTrackListItem:
     case UseCounter::CSSSelectorInternalMediaControlsTextTrackListItemInput:
     case UseCounter::CSSSelectorInternalMediaControlsTextTrackListKindCaptions:
     case UseCounter::CSSSelectorInternalMediaControlsTextTrackListKindSubtitles:
       return willBeRemoved(
           "-internal-media-controls-text-track-list* selectors", M59,
           "5661431349379072");
 
+    case UseCounter::EventCancelBubbleWasChangedToFalse:
+      return willBeRemoved("Setting cancelBubble to false", M59,

[foolip, 2017/01/24 04:34:11]

I think this will be misleading, because the change will have already been made.
In
https://groups.google.com/a/chromium.org/d/msg/blink-dev/GO7hv2yuhqM/jFy1WoR5...
rbyers@ was fine with skipping the deprecation period and that seems OK I think.

[lpy, 2017/01/24 21:46:05]

Done.

+                           "6091485216768000");
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
       return String();
   }
 }
 
 }  // namespace blink