Create c/b/ui/cocoa/test and move test files to there

chrome/browser/local_discovery/service_discovery_client_mac_unittest.mm

 // Copyright 2013 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 <Cocoa/Cocoa.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "chrome/browser/local_discovery/service_discovery_client.h"
 #include "chrome/browser/local_discovery/service_discovery_client_mac.h"
-#import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
+#import "chrome/browser/ui/cocoa/test/cocoa_test_helper.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/sockaddr_storage.h"
 #include "testing/gtest_mac.h"
 
 @interface TestNSNetService : NSNetService {
  @private
   base::scoped_nsobject<NSData> data_;
   base::scoped_nsobject<NSArray> addresses_;
 }
@@ skipping 216 matching lines @@
           base::Unretained(this), run_loop.QuitClosure()));
   resolver->StartResolving();
 
   run_loop.Run();
 
   EXPECT_EQ(1, num_resolves_);
   EXPECT_EQ(ServiceResolver::STATUS_KNOWN_NONEXISTENT, last_status_);
 }
 
 }  // namespace local_discovery