[Webkit-unassigned] [Bug 67428] New: Web Inspector: [Timeline] DOM mutations should get into InspectorInstrumentation regardless of the event listeners presence.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=67428

           Summary: Web Inspector: [Timeline] DOM mutations should get
                    into InspectorInstrumentation regardless of the event
                    listeners presence.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: pfeldman at chromium.org
                CC: timothy at apple.com, rik at webkit.org, keishi at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, yurys at chromium.org,
                    bweinstein at apple.com, apavlov at chromium.org,
                    loislo at chromium.org


We came across an interesting case where Layout event was not glued to any of the JS operations and it was hard to tell what was going on in the Timeline. It turned out that JavaScript was mutating DOM heavily and that was causing the layout. However, due to historical reasons, we only show DOM operations that the page is listening to (i.e. we primarily assess event listeners timing on Timeline). This should be fixed.

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