https://bugs.webkit.org/show_bug.cgi?id=90316

Patch by Yusuf Ozuysal <yusufo@google.com> on 2012-09-28
Reviewed by Adam Barth.

Added doubleTapGesture implementation and hooked it to an already present function computeScaleAndScrollForHitRect. Added 2 new tests and changed one based on the new implementation.

* src/WebViewImpl.cpp:
(WebKit::WebViewImpl::WebViewImpl):
(WebKit::WebViewImpl::handleGestureEvent):
(WebKit::WebViewImpl::computeScaleAndScrollForHitRect):
(WebKit::WebViewImpl::animateZoomAroundPoint):
(WebKit::WebViewImpl::didCommitLoad):
(WebKit::WebViewImpl::applyScrollAndScale):
* src/WebViewImpl.h:
(WebViewImpl):
* tests/WebFrameTest.cpp:
* tests/data/get_multiple_divs_for_auto_zoom_test.html: Added.
* tests/data/get_scale_bounds_check_for_auto_zoom_test.html: Added.
* tests/data/get_scale_for_auto_zoom_into_div_test.html:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@129928 268f45cc-cd09-0410-ab3c-d52691b4dbfc