Rename DiskCacheMonitor to NetworkDiskCacheMonitor
https://bugs.webkit.org/show_bug.cgi?id=135897

Reviewed by Andreas Kling.

In preparation for moving DiskCacheMonitor code to WebCore in bug 135896, rename the WebKit2
class to NetworkDiskCacheMonitor.

* NetworkProcess/mac/NetworkDiskCacheMonitor.h: Renamed from Source/WebKit2/NetworkProcess/mac/DiskCacheMonitor.h.
(WebKit::NetworkDiskCacheMonitor::resourceRequest):
* NetworkProcess/mac/NetworkDiskCacheMonitor.mm: Renamed from Source/WebKit2/NetworkProcess/mac/DiskCacheMonitor.mm.
(WebKit::NetworkDiskCacheMonitor::monitorFileBackingStoreCreation):
(WebKit::NetworkDiskCacheMonitor::NetworkDiskCacheMonitor):
(WebKit::NetworkDiskCacheMonitor::messageSenderConnection):
(WebKit::NetworkDiskCacheMonitor::messageSenderDestinationID):
* NetworkProcess/mac/NetworkResourceLoaderMac.mm:
(WebKit::NetworkResourceLoader::willCacheResponseAsync):
* WebKit2.xcodeproj/project.pbxproj:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@172691 268f45cc-cd09-0410-ab3c-d52691b4dbfc