https://bugs.webkit.org/show_bug.cgi?id=125178

Reviewed by Sam Weinig.

Source/WebKit2:

* Shared/API/c/WKDeclarationSpecifiers.h:
Add WK_DEPRECATED and WK_ENUM_DEPRECATED macros so we can things as deprecated.

* UIProcess/API/C/WKNotificationManager.cpp:
(WKNotificationManagerSetProvider):
* UIProcess/API/C/WKNotificationManager.h:
WKNotificationManagerSetProvider now takes a WKNotificationProviderBase.

* UIProcess/API/C/WKNotificationProvider.h:
Deprecate WKNotificationProvider and kWKNotificationProviderCurrentVersion.

Tools:

Update for WebKit2 changes.

* WebKitTestRunner/TestController.cpp:
(WTR::TestController::initialize):
* WebKitTestRunner/WebNotificationProvider.cpp:
(WTR::WebNotificationProvider::provider):
* WebKitTestRunner/WebNotificationProvider.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@160036 268f45cc-cd09-0410-ab3c-d52691b4dbfc