Vibration cannot be canceled during pattern vibration.

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 83 matching lines @@
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "core/platform/ColorChooser.h"
 #include "core/platform/Cursor.h"
 #include "core/platform/Language.h"
 #include "core/platform/graphics/IntRect.h"
 #include "core/rendering/RenderMenuList.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderTreeAsText.h"
 #include "core/rendering/RenderView.h"
 #include "core/workers/WorkerThread.h"
+#include "modules/vibration/NavigatorVibration.h"

[abarth-chromium, 2013/07/08 21:04:59]

Technically this is a bad dependency.  You should be able to compile Core
without any of the modules.  The right thing to do is to make it possible for
modules to implement their own extensions to Internals.  That should be
relatively easy, but will require a little bit of GYP work.

[haraken, 2013/07/12 09:21:42]

The right solution would be to add modules/vibration/InternalsVibration.idl (a
partial interface for Internals.idl) and add isVibrating() to the IDL file.

However, currently partial interfaces won't work for Internals' IDL files
because Internals' IDL files are treated differently from other IDL files in the
IDL compiler. Would you file a bug about the issue and discuss with nbarth@ ?

At this point, it might make sense to land your CL first with a FIXME about it.

[kihong, 2013/07/17 02:19:16]

I added FIXME here and nbarth@ going to implement about this soon.
After landing his patch, I will modify test cases for vibration.

 #include "weborigin/SchemeRegistry.h"
 #include "wtf/dtoa.h"
 #include "wtf/text/StringBuffer.h"
 
 #include "core/page/PagePopupController.h"
 #include "core/platform/graphics/GraphicsLayer.h"
 #include "core/platform/graphics/filters/FilterOperation.h"
 #include "core/platform/graphics/filters/FilterOperations.h"
 #include "core/rendering/RenderLayerBacking.h"
 
@@ skipping 1872 matching lines @@
     HTMLSelectElement* select = toHTMLSelectElement(node);
 
     RenderObject* renderer = select->renderer();
     if (!renderer->isMenuList())
         return false;
 
     RenderMenuList* menuList = toRenderMenuList(renderer);
     return menuList->popupIsVisible();
 }
 
+bool Internals::isVibrating()
+{
+    Document* document = contextDocument();

[abarth-chromium, 2013/07/08 21:04:59]

It's better to pass in |document| explicitly.

[kihong, 2013/07/12 11:04:13]

Done.

+    ASSERT(document && document->domWindow());
+
+    return NavigatorVibration::from(document->domWindow()->navigator())->isVibrating();
 }
+
+}