[webkit-changes] [WebKit/WebKit] d69c72: Fix unused private field warning after 263118 at main

[Don Olmstead]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: d69c72d2da6649234a4c72cbb5f6617a784670e5
      https://github.com/WebKit/WebKit/commit/d69c72d2da6649234a4c72cbb5f6617a784670e5
  Author: Don Olmstead <don.olmstead at sony.com>
  Date:   2023-04-19 (Wed, 19 Apr 2023)

  Changed paths:
    M Source/WebKit/UIProcess/CoordinatedGraphics/DrawingAreaProxyCoordinatedGraphics.h

  Log Message:
  -----------
  Fix unused private field warning after 263118 at main
https://bugs.webkit.org/show_bug.cgi?id=255695

Unreviewed build fix.

Removes `m_isWaitingForDidUpdateBackingStoreState` which is no longer
used.

* Source/WebKit/UIProcess/CoordinatedGraphics/DrawingAreaProxyCoordinatedGraphics.h:

Canonical link: https://commits.webkit.org/263161@main