[webkit-changes] [WebKit/WebKit] 43e797: Cherry-pick fab6d531c24f. rdar://problem/105637444

[Said Abou-Hallawa]

  Branch: refs/heads/safari-7616.1.3-branch
  Home:   https://github.com/WebKit/WebKit
  Commit: 43e7977ec2033b3a044695ef9c766be94210dca0
      https://github.com/WebKit/WebKit/commit/43e7977ec2033b3a044695ef9c766be94210dca0
  Author: Said Abou-Hallawa <said at apple.com>
  Date:   2023-02-21 (Tue, 21 Feb 2023)

  Changed paths:
    M Source/WebCore/platform/graphics/cg/GraphicsContextCG.cpp

  Log Message:
  -----------
  Cherry-pick fab6d531c24f. rdar://problem/105637444

    REGRESSION(260471 at main): The platform graphics context colorspace should not be adopted
    https://bugs.webkit.org/show_bug.cgi?id=252629
    rdar://105637444

    Reviewed by Darin Adler.

    When storing the return raw pointer of CGIOSurfaceContextGetColorSpace() or
    CGBitmapContextGetColorSpace() in a RetainPtr, we should not be using adoptCF().
    The refcount of the colorspace should be incremented when WebKit references it.

    * Source/WebCore/platform/graphics/cg/GraphicsContextCG.cpp:
    (WebCore::GraphicsContextCG::colorSpace const):

    Canonical link: https://commits.webkit.org/260609@main

Canonical link: https://commits.webkit.org/260516.2@safari-7616.1.3-branch