Bug 110366

Summary: [New Multicolumn] RenderMultiColumnFlowThreads should establish a BFC
Product: WebKit Reporter: Dave Hyatt <hyatt>
Component: Layout and RenderingAssignee: Dave Hyatt <hyatt>
Severity: Normal CC: eric, esprehn+autocc, ojan.autocc, WebkitBugTracker, webkit.review.bot
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Description Flags
Patch koivisto: review+

Description Dave Hyatt 2013-02-20 12:35:31 PST
RenderFlowThreads should establish a block formatting context always. CSS Regions have named flow thread that they absolutely position, and so they got this for free by being absolutely positioned. RenderMultiColumnFlowThreads, however, are relative positioned, so we need to just add an isRenderFlowThread case specifically so we're not dependent on the positioning scheme used for the flow thread to establish the BFC.
Comment 1 Dave Hyatt 2013-02-20 12:43:52 PST
Created attachment 189359 [details]
Comment 2 Dave Hyatt 2013-02-20 13:02:13 PST
Fix landed in r143486.