[Webkit-unassigned] [Bug 222095] New: Avoid heap allocation for EventContexts

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222095

            Bug ID: 222095
           Summary: Avoid heap allocation for EventContexts
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rniwa at webkit.org

We don't need to a class hierarchy to represent different kinds of EventContext.
Merge all the subclasses of EventContext onto itself to avoid heap allocation in EventPath.

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