Bug 68285

Summary: Use RenderedPosition instead of VisiblePosition in accessibility code
Product: WebKit Reporter: Ryosuke Niwa <rniwa>
Component: AccessibilityAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: aboxhall, cfleizach, davidbarr, igor.oliveira, jcraig, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 68283    
Bug Blocks: 68284    

Description Ryosuke Niwa 2011-09-16 15:07:32 PDT 
Per IRC discussion, we should move away from VisiblePosition and use RenderedPosition in accessibility code.

RenderedPosition has the following benefits:
1. It does not canonicalize positions unlike VisiblePosition so we can fix bugs like https://bugs.webkit.org/show_bug.cgi?id=57685
2. It's performant since it doesn't trigger layout or spends time doing canonicalization
Comment 1 Radar WebKit Bug Importer 2013-12-20 10:53:25 PST 
<rdar://problem/15709608>