[Webkit-unassigned] [Bug 218427] New: [GPU Process] Control the life cycle of the platform image by a new class named NativeImage

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=218427

            Bug ID: 218427
           Summary: [GPU Process] Control the life cycle of the platform
                    image by a new class named NativeImage
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com
                CC: dino at apple.com

A new class is needed to allow:

1. Caching the platform image in the GPU side when it is first painted. This can be done by assigning a unique RenderingBackendIdentifier to each NativeImage.
2. Remove the platform image from the GPU side when the NativeImage is being destroyed.

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