[Mac] Use the new {EXPECT,ASSERT}_NS{EQ,NE} macros where possible.

chrome/browser/cocoa/tab_controller_unittest.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 <Cocoa/Cocoa.h>
 
 #import "base/scoped_nsobject.h"
 #import "chrome/browser/cocoa/tab_controller.h"
 #import "chrome/browser/cocoa/tab_controller_target.h"
 #include "chrome/browser/cocoa/cocoa_test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#import "testing/gtest_mac.h"
 #include "testing/platform_test.h"
 
 // Implements the target interface for the tab, which gets sent messages when
 // the tab is clicked on by the user and when its close box is clicked.
 @interface TabControllerTestTarget : NSObject<TabControllerTarget> {
  @private
   bool selected_;
   bool closed_;
 }
 - (bool)selected;
@@ skipping 92 matching lines @@
 // Tests that setting the title of a tab sets the tooltip as well.
 TEST_F(TabControllerTest, ToolTip) {
   NSWindow* window = test_window();
 
   scoped_nsobject<TabController> controller([[TabController alloc] init]);
   [[window contentView] addSubview:[controller view]];
 
   EXPECT_TRUE([[controller toolTip] length] == 0);
   NSString *tooltip_string = @"Some text to use as a tab title";
   [controller setTitle:tooltip_string];
-  EXPECT_TRUE([tooltip_string isEqualToString:[controller toolTip]]);
+  EXPECT_NSEQ(tooltip_string, [controller toolTip]);
 }
 
 // Tests setting the |loading| property via code.
 TEST_F(TabControllerTest, Loading) {
   NSWindow* window = test_window();
   scoped_nsobject<TabController> controller([[TabController alloc] init]);
   [[window contentView] addSubview:[controller view]];
 
   EXPECT_EQ(kTabDone, [controller loadingState]);
   [controller setLoadingState:kTabWaiting];
@@ skipping 123 matching lines @@
   int cap = [controller iconCapacity];
   EXPECT_GT(cap, 0);
 
   // Asking the view for its menu should yield a valid menu.
   NSMenu* menu = [[controller view] menu];
   EXPECT_TRUE(menu);
   EXPECT_GT([menu numberOfItems], 0);
 }
 
 }  // namespace