Update OCMock to 3.1.5

third_party/ocmock/OCMock/NSNotificationCenter+OCMAdditions.h

-//---------------------------------------------------------------------------------------
-//  $Id$
-//  Copyright (c) 2009 by Mulle Kybernetik. See License file for details.
-//---------------------------------------------------------------------------------------
+/*
+ *  Copyright (c) 2009-2015 Erik Doernenburg and contributors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use these files except in compliance with the License. You may obtain
+ *  a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ *  License for the specific language governing permissions and limitations
+ *  under the License.
+ */
 
 #import <Foundation/Foundation.h>
 
-@class OCMockObserver;
+@class OCObserverMockObject;
 
 
 @interface NSNotificationCenter(OCMAdditions)
 
-- (void)addMockObserver:(OCMockObserver *)notificationObserver name:(NSString *)notificationName object:(id)notificationSender;
+- (void)addMockObserver:(OCObserverMockObject *)notificationObserver name:(NSString *)notificationName object:(id)notificationSender;
 
 @end