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

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

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_RUN_LOOP_TESTING_H_

[Robert Sesek, 2016/12/09 18:58:46]

Same here (all moved files).

 #define CHROME_BROWSER_UI_COCOA_RUN_LOOP_TESTING_H_
 
 namespace chrome {
 namespace testing {
 
 // A common pattern in Chromium is to get a selector to execute on the next
 // iteration of the outermost run loop, done like so:
 //
 //    [someObj performSelector:@selector(someSel:) withObject:nil afterDelay:0];
 //
 // This is used when performing the work will negatively affect something
 // currently on the stack. Unfortunately this also affects the testability of
 // objects that do this. A call to this function will pump work like this from
 // the event queue and run it until all such work, as of the time of calling
 // this, has been processed.
 //
 // Note that this is not a NSApplication-based loop, and so things like NSEvents
 // are *not* pumped from the event queue.
 void NSRunLoopRunAllPending();
 
 }  // namespace testing
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_COCOA_RUN_LOOP_TESTING_H_