Enable UI process storage
https://bugs.webkit.org/show_bug.cgi?id=115879
<rdar://problem/12239765>

Reviewed by Beth Dakin.

* WebProcess/WebCoreSupport/WebPlatformStrategies.cpp:
Flip the switch.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149849 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed build fix after r149836.

It broke at least EFL and GTK builds. Move new static members initialization
outside the class. Those need to have a definition outside the class because
their address is used (e.g. CodeCacheMap::nonGlobalWorkingSetMaxEntries).

* runtime/CodeCache.cpp:
(JSC):
* runtime/CodeCache.h:
(CodeCacheMap):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149850 268f45cc-cd09-0410-ab3c-d52691b4dbfc