[Webkit-unassigned] [Bug 122855] New: Make Element::attach 5% faster

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=122855

           Summary: Make Element::attach 5% faster
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: koivisto at iki.fi, barraclough at apple.com,
                    benjamin at webkit.org, akling at apple.com,
                    psolanki at apple.com


Consider merging https://chromium.googlesource.com/chromium/blink/+/4576cb16a2c026d1718ff9328df354de3c96e332

Profiling one of Polymer's infinite list demos, we're spending all of our time
in Element::attach. A bunch of that time is wasted on function call overhead.
This CL inlines a few choice functions and saves 5% of the time below
Element::attach.

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