Cache a pointer to V8DOMActivityLogger in PerContextData

[Ankur Taly]

Add a data member (and getter, setter methods) to V8PerContextData that holds a pointer
to V8DOMActivityLogger. This member is set while initializing the context for a V8DOMWindowShell.
Ownership of the pointer is still retained by the HashMap in DOMWrapperWorld.

[Ankur Taly]

Subsequent patches (addressing Bug: 107207) will then obtain a reference to the V8DOMActivityLogger directly from PerContextData attached to the current context. The assumption is that this is faster than getting the reference from the HashMap in DOMWrapperWorld

[Ankur Taly]

Created attachment 193953 [details]
Patch

[Kentaro Hara]

Comment on attachment 193953 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=193953&action=review

Looks OK

> Source/WebCore/ChangeLog:16
> +        Cache a pointer to V8DOMActivityLogger in PerContextData.
> +        Adds a data member (and getter, setter methods) to V8PerContextData
> +        that holds a pointer to a V8DOMActivityLogger. This member is set while
> +        initializing the context for a V8DOMWindowShell. Ownership of the pointer
> +        is still retained by the HashMap in DOMWrapperWorld.
> +        As a result of this patch, subsequent patches that will implement logging
> +        for DOM API access (See bug 107207) will be able to obtain a reference to
> +        the logger directly from PerContextData. This will benefit performance as it
> +        will be faster than looking up the logger in the HashMap in DOMWrapperWorld.
> +        https://bugs.webkit.org/show_bug.cgi?id=112719
> +
> +        Reviewed by NOBODY (OOPS!).
> +
> +        There are no new tests as there is no change in behavior.

Nit: In WebKit we write a bug title (which should be in one line), a bug URL, a bug description, and a test, in this order. Please fix it before landing.

> Source/WebCore/bindings/v8/V8PerContextData.h:128
> +    V8DOMActivityLogger* m_activityLogger;

Would you add a comment about the lifetime?

[Ankur Taly]

Created attachment 193960 [details]
Patch

[Kentaro Hara]

Comment on attachment 193960 [details]
Patch

Thanks!

[WebKit Review Bot]

Comment on attachment 193960 [details]
Patch

Clearing flags on attachment: 193960

Committed r146295: <http://trac.webkit.org/changeset/146295>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.