Remove UserMediaProcessManager processState map

[youenn fablet]

Following on https://bugs.webkit.org/show_bug.cgi?id=195028, this process/proxy map can break easily.
Instead, we could move the sandbox state to WebProcessProxy and keep a set of all proxies.

[youenn fablet]

Created attachment 363008 [details]
Patch

[Radar WebKit Bug Importer]

<rdar://problem/48411208>

[youenn fablet]

Created attachment 363010 [details]
Patch

[youenn fablet]

Created attachment 363022 [details]
Patch

[Eric Carlson]

Comment on attachment 363022 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=363022&action=review

> Source/WebKit/ChangeLog:9
> +        To improve on this model, this patch doing the following:

Nit: "this patch doing the following:" -> "this patch does the following:"

> Source/WebKit/UIProcess/UserMediaPermissionRequestManagerProxy.cpp:64
> +static HashSet<UserMediaPermissionRequestManagerProxy*>& proxies()
> +{
> +    static NeverDestroyed<HashSet<UserMediaPermissionRequestManagerProxy*>> set;
> +    return set;
> +}
> +
> +void UserMediaPermissionRequestManagerProxy::forEach(const WTF::Function<void(UserMediaPermissionRequestManagerProxy&)>& function)
> +{
> +    for (auto* proxy : proxies())
> +        function(*proxy);
> +}

Nit: this should be in "#if ENABLE(MEDIA_STREAM)".

[youenn fablet]

Created attachment 363103 [details]
Patch for landing

[WebKit Commit Bot]

Comment on attachment 363103 [details]
Patch for landing

Clearing flags on attachment: 363103

Committed r242142: <https://trac.webkit.org/changeset/242142>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.