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

chrome/browser/ui/cocoa/test/cocoa_test_helper.h

Index: chrome/browser/ui/cocoa/test/cocoa_test_helper.h
diff --git a/chrome/browser/ui/cocoa/cocoa_test_helper.h b/chrome/browser/ui/cocoa/test/cocoa_test_helper.h
similarity index 86%
rename from chrome/browser/ui/cocoa/cocoa_test_helper.h
rename to chrome/browser/ui/cocoa/test/cocoa_test_helper.h
index de69e97dbf7c4038f1066833c8c6520a46cf8033..8120e93f7c543912b75bd92db2a095d2bc86c301 100644
--- a/chrome/browser/ui/cocoa/cocoa_test_helper.h
+++ b/chrome/browser/ui/cocoa/test/cocoa_test_helper.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_COCOA_COCOA_TEST_HELPER_H_
-#define CHROME_BROWSER_UI_COCOA_COCOA_TEST_HELPER_H_
+#ifndef CHROME_BROWSER_UI_COCOA_TEST_COCOA_TEST_HELPER_H_
+#define CHROME_BROWSER_UI_COCOA_TEST_COCOA_TEST_HELPER_H_
 
 #import <Cocoa/Cocoa.h>
 
@@ -27,4 +27,4 @@ class CocoaTest : public ui::CocoaTest {
   CocoaTest();
 };
 
-#endif  // CHROME_BROWSER_UI_COCOA_COCOA_TEST_HELPER_H_
+#endif  // CHROME_BROWSER_UI_COCOA_TEST_COCOA_TEST_HELPER_H_