[Webkit-unassigned] [Bug 86272] New: Web Inspector: "Load timeline data" should be future proof

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=86272

           Summary: Web Inspector: "Load timeline data" should be future
                    proof
           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: tonyg 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


Due to bug 86254, I had to use an old copy of Chrome 15 to load timeline data recorded with Chrome 20.

However, the old version wouldn't load the new trace because it included type: "BeginFrame" events which it didn't understand. So it throws:
[17846:263:70980640361484:ERROR:CONSOLE(50564)] "Uncaught TypeError: Cannot read property 'category' of undefined", source: chrome-devtools://devtools/DevTools.js (50564)
[17846:263:70980640449015:ERROR:CONSOLE(51079)] "Uncaught TypeError: Cannot read property 'name' of undefined", source: chrome-devtools://devtools/DevTools.js (51079)

It would be nice if the code were written so that unknown types are ignored. This will avoid breaking compatibility when we add types in the future.

As a workaround, I manually removed the BeginFrame events from the JSON.

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