[ObjC ARC] Converts ios/testing:ocmock_support to ARC.Automatically generated ARCMigrate commitN…

ios/testing/ocmock_complex_type_helper.mm

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/testing/ocmock_complex_type_helper.h"
 
 #include "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 @implementation OCMockComplexTypeHelper {
   // Same as the superclass -representedObject, but retained.
   base::scoped_nsobject<OCMockObject> _object;
   // All the blocks registered by selector.
   base::scoped_nsobject<NSMutableDictionary> _blocks;
 }
 
 #pragma mark - public methods.
 
 - (instancetype)initWithRepresentedObject:(id)object {
   if ((self = [super initWithRepresentedObject:object]))
-    _object.reset([object retain]);
+    _object.reset(object);
   return self;
 }
 
 - (void)onSelector:(SEL)selector callBlockExpectation:(id)block {
   if (!_blocks)
     _blocks.reset([[NSMutableDictionary alloc] init]);
 
   NSString* key = NSStringFromSelector(selector);
   DCHECK(![_blocks objectForKey:key]) << "Only one expectation per signature";
   base::scoped_nsobject<id> value([block copy]);
@@ skipping 37 matching lines @@
 }
 
 #pragma mark - Internal methods.
 
 - (BOOL)respondsToSelector:(SEL)selector {
   DCHECK(![_blocks objectForKey:NSStringFromSelector(selector)]);
   return [super respondsToSelector:selector];
 }
 
 @end