Split up the storage event dispatch functions further
https://bugs.webkit.org/show_bug.cgi?id=111482

Reviewed by Beth Dakin.

Add new functions for dispatching storage events to a set of frames.

* storage/StorageAreaImpl.cpp:
(WebCore::StorageAreaImpl::dispatchStorageEvent):
* storage/StorageEventDispatcher.cpp:
(WebCore::StorageEventDispatcher::dispatchSessionStorageEvents):
(WebCore::StorageEventDispatcher::dispatchLocalStorageEvents):
(WebCore):
(WebCore::StorageEventDispatcher::dispatchSessionStorageEventsToFrames):
(WebCore::StorageEventDispatcher::dispatchLocalStorageEventsToFrames):
* storage/StorageEventDispatcher.h:
(WebCore):
(StorageEventDispatcher):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144826 268f45cc-cd09-0410-ab3c-d52691b4dbfc