[BlackBerry] Clean up animated scroll/zoom code in WebPagePrivate
https://bugs.webkit.org/show_bug.cgi?id=111373

Patch by Andrew Lo <anlo@rim.com> on 2013-03-05
Reviewed by Rob Buis.

Internally reviewed by Jakob Petsovits.
Internal PR 285468.

Have WebPageClient pass the final scale and position to WebPage when a zoom/scroll
animation finishes, rather than keeping those values as instance variables in
WebPagePrivate.

Rename some functions & variables to reflect that they are used for both block zoom
and generic zoom/scroll animations.

* Api/WebPage.cpp:
(BlackBerry::WebKit::WebPagePrivate::WebPagePrivate):
(BlackBerry::WebKit::WebPagePrivate::zoomAnimationFinished):
(BlackBerry::WebKit::WebPage::zoomAnimationFinished):
(BlackBerry::WebKit::WebPagePrivate::resetBlockZoom):
(BlackBerry::WebKit::WebPage::blockZoom):
(BlackBerry::WebKit::WebPagePrivate::animateToScaleAndDocumentScrollPosition):
* Api/WebPage.h:
* Api/WebPageClient.h:
* Api/WebPage_p.h:
(WebPagePrivate):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144750 268f45cc-cd09-0410-ab3c-d52691b4dbfc