[Chromium] WebWidget::selectionBounds should return the bounds in document space
https://bugs.webkit.org/show_bug.cgi?id=108386

Patch by Chris Hopman <cjhopman@chromium.org> on 2013-02-01
Reviewed by James Robinson.

When in applyPageScaleFactorInCompositor mode, selectionBounds needs
to scale the anchor/focus window points by the pageScaleFactor.

* src/WebViewImpl.cpp:
(WebKit::WebViewImpl::selectionBounds):
(WebKit::WebViewImpl::computeScaleAndScrollForFocusedNode):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141657 268f45cc-cd09-0410-ab3c-d52691b4dbfc