[Webkit-unassigned] [Bug 116105] New: [WK2][QT][EFL] Sync contents size between WebProcess and UIProcess.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=116105

           Summary: [WK2][QT][EFL] Sync contents size between WebProcess
                    and UIProcess.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jungjik.lee at samsung.com


this issue is occurred only in EFL, but it can be occurred in both QT and EFL.
this issue is that when MiniBrowser launchs with html file,
WebChromeClient send the contents size to UIProcess.
However because it's not sync type message, there is a time gap between WebProcess and UIProcess.
So if we send the contents size message to UIProcess more than twice fast,
UIProcess can not handle the messages at right time.

Like this,
WEBPROCESS virtual void WebKit::WebChromeClient::contentsSizeChanged(WebCore::Frame*, const WebCore::IntSize&) const 127 8
WEBPROCESS virtual void WebKit::WebChromeClient::contentsSizeChanged(WebCore::Frame*, const WebCore::IntSize&) const 800 564
UIPROCESS void WebKit::PageViewportController::didChangeContentsSize(const WebCore::IntSize&) 127 8
UIPROCESS void WebKit::PageViewportController::didChangeContentsSize(const WebCore::IntSize&) 800 564

this cause another problem In EFL MiniBrowse >
https://bugs.webkit.org/show_bug.cgi?id=114496

Miss-match the contents size between WebProcess-side and UIProcess-side makes a huge scale factor.
this patch is for changing the DidChangeContentsSize message type to sync message type.

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