Update a comment in NetworkProcess to be more accurate.

Rubberstamped by Sam Weinig.

* NetworkProcess/NetworkProcess.cpp:
(WebKit::NetworkProcess::didClose):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142700 268f45cc-cd09-0410-ab3c-d52691b4dbfc
[iOS] Enable PAGE_VISIBILITY_API
https://bugs.webkit.org/show_bug.cgi?id=109399

Patch by Joseph Pecoraro <pecoraro@apple.com> on 2013-02-12
Reviewed by David Kilzer.

Source/JavaScriptCore:

* Configurations/FeatureDefines.xcconfig:

Source/WebCore:

* Configurations/FeatureDefines.xcconfig:

Source/WebKit/mac:

* Configurations/FeatureDefines.xcconfig:

Source/WebKit2:

* Configurations/FeatureDefines.xcconfig:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142701 268f45cc-cd09-0410-ab3c-d52691b4dbfc