[Webkit-unassigned] [Bug 53871] New: Refactor Font::normalizeSpaces() to avoid an extra String copy.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=53871

           Summary: Refactor Font::normalizeSpaces() to avoid an extra
                    String copy.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kling at webkit.org


Font::normalizeSpaces() could take an UChar*/length pair as arguments instead of a String.
All call sites create a temporary String for passing to this function, and there is some cleverness in normalizeSpaces() to reuse that String if no spaces are normalized.
We should let normalizeSpaces() do the String creation which means we'll always make 1 String instead of 1 in the best case and 2 in the worst case.

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