https://bugs.webkit.org/show_bug.cgi?id=127207

Reviewed by Sam Weinig.

Recent changes in our underlying media frameworks caused our shimmed methods
in CookieStorageShim to stop being called. Insert an objective-c shim in addition
to our original shim to intercept pulling cookies out of cookie storage.

* Shared/mac/CookieStorageShim.mm: Renamed from Source/WebKit2/Shared/mac/CookieStorageShim.cpp.
(WebKit::CookieStorageShim::initialize): Insert the shim.
(-[WKNSURLSessionLocal _copyCookiesForRequestUsingAllAppropriateStorageSemantics:]):
    Pass through to webKitCookieStorageCopyRequestHeaderFieldsForURL().
* WebKit2.xcodeproj/project.pbxproj: Rename CookieStorageShim.cpp -> .mm.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@162531 268f45cc-cd09-0410-ab3c-d52691b4dbfc