commit 40aa55aa985a1a048a1d1447cd314f2c594122a6
author antti@apple.com <antti@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Fri May 16 20:53:51 2014 +0000
committer antti@apple.com <antti@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Fri May 16 20:53:51 2014 +0000
tree 1a8f636ca5c98ba913fb7028ecea08fc41a93d6d
parent 8c2f11b6e31d8b29b994489c4935c020b38860ab

Link search area for touch events is too large in some cases
https://bugs.webkit.org/show_bug.cgi?id=132988
<rdar://problem/16917843>

Reviewed by Simon Fraser.

* page/ios/FrameIOS.mm:
(WebCore::Frame::qualifyingNodeAtViewportLocation):
        
    - Adjust the search area to screen ppi.
    - Remove cut-off at scale 1. This made us pick physically far-away elements when zoomed in.
            
* platform/PlatformScreen.h:
* platform/ios/PlatformScreenIOS.mm:
(WebCore::mobileGestaltFloatValue):
(WebCore::screenPPIFactor):

    Figure out screens physical PPI relative to a base.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@168977 268f45cc-cd09-0410-ab3c-d52691b4dbfc