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

chrome/browser/ui/cocoa/extensions/extension_message_bubble_browsertest_mac.mm

 // Copyright 2015 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.
 
 #include "base/macros.h"
 #include "chrome/browser/ui/browser_window.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #import "chrome/browser/ui/cocoa/extensions/browser_action_button.h"
 #import "chrome/browser/ui/cocoa/extensions/browser_actions_controller.h"
 #import "chrome/browser/ui/cocoa/extensions/toolbar_actions_bar_bubble_mac.h"
-#import "chrome/browser/ui/cocoa/run_loop_testing.h"
+#import "chrome/browser/ui/cocoa/test/run_loop_testing.h"
 #import "chrome/browser/ui/cocoa/toolbar/toolbar_controller.h"
 #include "chrome/browser/ui/extensions/extension_message_bubble_browsertest.h"
 #include "ui/base/cocoa/cocoa_base_utils.h"
 #include "ui/events/test/cocoa_test_event_utils.h"
 
 namespace {
 
 // Returns the ToolbarController for the given browser.
 ToolbarController* ToolbarControllerForBrowser(Browser* browser) {
   return [[BrowserWindowController browserWindowControllerForWindow:
@@ skipping 230 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(ExtensionMessageBubbleBrowserTestMac,
                        PRE_TestControlledStartupNotShownOnRestart) {
   PreTestControlledStartupNotShownOnRestart();
 }
 
 IN_PROC_BROWSER_TEST_F(ExtensionMessageBubbleBrowserTestMac,
                        TestControlledStartupNotShownOnRestart) {
   TestControlledStartupNotShownOnRestart();
 }