Move UUID from WebCore/platform to WTF

Move UUID from WebCore/platform to WTF
https://bugs.webkit.org/show_bug.cgi?id=171372

Reviewed by Michael Catanzaro.

Source/WebCore:

UUID only contains createCanonicalUUIDString() that is platform independent and doesn't depend on anything from
WebCore, only from WTF.

* CMakeLists.txt:
* Modules/encryptedmedia/legacy/LegacyCDMSessionClearKey.cpp:
* Modules/mediacontrols/MediaControlsHost.cpp:
* Modules/mediastream/RTCPeerConnection.cpp:
* Modules/webaudio/MediaStreamAudioSource.cpp:
* Modules/webdatabase/DatabaseTracker.cpp:
* WebCore.order:
* WebCore.xcodeproj/project.pbxproj:
* editing/mac/EditorMac.mm:
* fileapi/BlobURL.cpp:
* loader/appcache/ApplicationCacheHost.cpp:
* loader/appcache/ApplicationCacheStorage.cpp:
* platform/URL.cpp:
* platform/glib/FileSystemGlib.cpp:
* platform/graphics/avfoundation/cf/CDMSessionAVFoundationCF.cpp:
* platform/graphics/avfoundation/objc/CDMSessionAVContentKeySession.mm:
* platform/graphics/avfoundation/objc/CDMSessionAVFoundationObjC.mm:
* platform/graphics/avfoundation/objc/CDMSessionAVStreamSession.mm:
* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm:
* platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp:
* platform/mediastream/CaptureDeviceManager.cpp:
* platform/mediastream/MediaStreamPrivate.h:
* platform/mediastream/MediaStreamTrackPrivate.cpp:
* platform/mediastream/RealtimeMediaSource.cpp:
* platform/mediastream/mac/AVCaptureDeviceManager.mm:
* platform/mediastream/mac/AVMediaCaptureSource.mm:
* platform/mediastream/openwebrtc/RealtimeMediaSourceCenterOwr.cpp:
* platform/mock/MockRealtimeAudioSource.cpp:
* platform/mock/MockRealtimeMediaSourceCenter.cpp:
* platform/mock/MockRealtimeVideoSource.cpp:
* testing/MockCDMFactory.cpp:

Source/WebKit2:

* UIProcess/Automation/WebAutomationSession.cpp:
(WebKit::WebAutomationSession::handleForWebPageProxy):
(WebKit::WebAutomationSession::handleForWebFrameID):
* UIProcess/gtk/WaylandCompositor.cpp:
* WebProcess/Automation/WebAutomationSessionProxy.cpp:
(WebKit::createUUID):
* WebProcess/Plugins/PDF/PDFPlugin.mm:
(WebKit::PDFPlugin::openWithNativeApplication):

Source/WTF:

* WTF.xcodeproj/project.pbxproj:
* wtf/CMakeLists.txt:
* wtf/UUID.cpp: Renamed from Source/WebCore/platform/UUID.cpp.
* wtf/UUID.h: Renamed from Source/WebCore/platform/UUID.h.

Tools:

* WebKitTestRunner/TestController.cpp:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@215922 268f45cc-cd09-0410-ab3c-d52691b4dbfc