[Webkit-unassigned] [Bug 105026] New: Web Inspector: Native Memory Instrumentation: MemoryInstrumentation doesn't detect reportMemoryUsage method defined in a base class.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=105026

           Summary: Web Inspector: Native Memory Instrumentation:
                    MemoryInstrumentation doesn't detect reportMemoryUsage
                    method defined in a base class.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: loislo at chromium.org
                CC: keishi at webkit.org, pmuellr at yahoo.com,
                    pfeldman at chromium.org, yurys at chromium.org,
                    apavlov at chromium.org, loislo at chromium.org,
                    vsevik at chromium.org,
                    web-inspector-bugs at googlegroups.com


It is relatively frequent case when we report a pointer to an object of a class
and this class does not have reportMemoryUsage method but its parent does.
Current implementation does not detect such cases.
As a result we count such objects via sizeof and do not call reportMemoryUsage.

I found a working solution and need to check it against all the WebKit compilers.

http://stackoverflow.com/questions/1966362/sfinae-to-check-for-inherited-member-functions

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