Unreviewed. Fix Qt Linux MIPS32R2 build after r149879.

Bring back GLIB_CHECK_VERSION for GBytes since Qt Linux MIPS32R2
depends on glib 2.24.2.

* wtf/gobject/GRefPtr.cpp:
(_GBytes):
(WTF::refGPtr):
(WTF::derefGPtr):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@150019 268f45cc-cd09-0410-ab3c-d52691b4dbfc
[WK2] Notification manager removal should not be tied to termination of web processes
https://bugs.webkit.org/show_bug.cgi?id=116038
<rdar://problem/10968680>

Reviewed by Ryosuke Niwa.

WebNotificationManagerProxy incorrectly removes the manager when web processes close.
Since it is a supplemental on the web context, the manager should only be removed
when the context is destroyed.

* UIProcess/Notifications/WebNotificationManagerProxy.cpp:
* UIProcess/Notifications/WebNotificationManagerProxy.h: Remove implementation of
processDidClose().

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@150020 268f45cc-cd09-0410-ab3c-d52691b4dbfc