Reviewed by Anders

        The SessionStorage for a Page has to be copied every time a new Page is created.

        I thought I had the right choke point for creating new Pages at FrameLoader::createWindow(),
        but it just so happens there was another - in the ContextMenuController.

        The *real* choke point for this, then, is in the Chrome itself.

        * loader/FrameLoader.cpp:
        (WebCore::FrameLoader::createWindow): Don't do the SessionStorage copy here...

        * page/Chrome.cpp:
        (WebCore::Chrome::createWindow): Do it here, instead!



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@32032 268f45cc-cd09-0410-ab3c-d52691b4dbfc