[Webkit-unassigned] [Bug 113823] New: Generalize prior line break context state and names.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=113823

           Summary: Generalize prior line break context state and names.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Minor
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: glenn at skynav.com
                CC: eric at webkit.org, darin at apple.com, mitz at webkit.org,
                    msaboff at apple.com, leviw at chromium.org,
                    kojiishi at gmail.com
            Blocks: 105692


In order to better accommodate an expectation of more general state for prior line break context text and to facilitate use of prior context in non-ASCII line break path, change to a fixed UChar array for storage of prior context and change accessors/methods to use better names.

This change is to simplify (reduce the size of) the patch proposed for bug 105692 in order to ease the review and landing process.

No behavioral change is introduced, so no new tests are required.

Note that it is expected that this prior context state may be further generalized in the future in order to accommodate greater than the last two context characters. This is expected to be required to support Thai (and similar) dictionary based line breaking, where the prior context may consist of an entire word.

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