Move scoped_nsdisable_screen_update from base to app/mac...

chrome/browser/cocoa/cocoa_test_helper.mm

 // Copyright (c) 2009 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 "chrome/browser/cocoa/cocoa_test_helper.h"
 
 #include "base/logging.h"
 #include "base/test/test_timeouts.h"
 #import "chrome/browser/chrome_browser_application_mac.h"
 
@@ skipping 106 matching lines @@
     bool one_more_time = true;
     int spins = 0;
     while (still_left.size() == windows_left.size() &&
            (spins < kCloseSpins || one_more_time)) {
       // Check the timeout before pumping events, so that we'll spin
       // the loop once after the timeout.
       one_more_time = ([start_date timeIntervalSinceNow] > -kCloseTimeoutSeconds);
 
       // Autorelease anything thrown up by the event loop.
       {
-        base::ScopedNSAutoreleasePool pool;
+        base::mac::ScopedNSAutoreleasePool pool;
         ++spins;
         NSEvent *next_event = [NSApp nextEventMatchingMask:NSAnyEventMask
                                                  untilDate:nil
                                                     inMode:NSDefaultRunLoopMode
                                                    dequeue:YES];
         [NSApp sendEvent:next_event];
         [NSApp updateWindows];
       }
 
       // Refresh the outstanding windows.
@@ skipping 19 matching lines @@
   }
   PlatformTest::TearDown();
 }
 
 std::set<NSWindow*> CocoaTest::ApplicationWindows() {
   // This must NOT retain the windows it is returning.
   std::set<NSWindow*> windows;
 
   // Must create a pool here because [NSApp windows] has created an array
   // with retains on all the windows in it.
-  base::ScopedNSAutoreleasePool pool;
+  base::mac::ScopedNSAutoreleasePool pool;
   NSArray *appWindows = [NSApp windows];
   for (NSWindow *window in appWindows) {
     windows.insert(window);
   }
   return windows;
 }
 
 std::set<NSWindow*> CocoaTest::WindowsLeft() {
   const std::set<NSWindow*> windows(ApplicationWindows());
   std::set<NSWindow*> windows_left;
   std::set_difference(windows.begin(), windows.end(),
                       initial_windows_.begin(), initial_windows_.end(),
                       std::inserter(windows_left, windows_left.begin()));
   return windows_left;
 }
 
 CocoaTestHelperWindow* CocoaTest::test_window() {
   if (!test_window_) {
     test_window_ = [[CocoaTestHelperWindow alloc] init];
     if (DebugUtil::BeingDebugged()) {
       [test_window_ orderFront:nil];
     } else {
       [test_window_ orderBack:nil];
     }
   }
   return test_window_;
 }