[Webkit-unassigned] [Bug 288587] New: GPU process uses same map for all resources

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=288587

            Bug ID: 288587
           Summary: GPU process uses same map for all resources
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Process Model
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kkinnunen at apple.com
                CC: nham at apple.com, webkit-bug-importer at group.apple.com

GPU process uses same map for all resources

This is a problem for 
- performance: lookups are slower because the type is the best discriminator
- memory size: bigger maps reserve bigger overallocation
- type safety: code can mistake A for B if A and B are in the same map
- code structure: the key, RenderingResourceIdentifier, is making the code more obscure than having each type have its own identifier, similar to any other resource

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