[Webkit-unassigned] [Bug 125803] New: Add layer hosting mode to ViewState

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=125803

           Summary: Add layer hosting mode to ViewState
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: barraclough at apple.com


When the view state of the page is updated the layer mode may also change. Currently this is passed by a separate message, remove this and fold it into ViewState.

Previously the setLayerHostingMode message would be passed to the DrawingArea, which would inform the WebPage. Since the WebPage is passed the SetVisibilityState messgae reverse this.

WebPageProxy had a policy of only updating the hosting mode when visible - the value is sticky whilst the view is not visible. Make this policy explicit in the PageClientImpl, rather then implicit from the flow control.

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