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

chrome/browser/cocoa/browser_accessibility_unittest.mm

 // Copyright (c) 2010 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>
 
 #include "base/string_util.h"
 #include "chrome/browser/cocoa/browser_accessibility.h"
 #include "chrome/browser/cocoa/cocoa_test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#import "testing/gtest_mac.h"
 
 @interface MockAccessibilityDelegate : NSObject<BrowserAccessibilityDelegate>
 
 - (NSPoint)accessibilityPointInScreen:(BrowserAccessibility*)accessibility;
 - (void)doDefaultAction:(int32)accessibilityObjectId;
 - (void)setAccessibilityFocus:(BOOL)focus
               accessibilityId:(int32)accessibilityObjectId;
 - (NSWindow*)window;
 
 @end
@@ skipping 51 matching lines @@
 
  protected:
   scoped_nsobject<MockAccessibilityDelegate> delegate_;
   scoped_nsobject<BrowserAccessibility> accessibility_;
 };
 
 // Standard hit test.
 TEST_F(BrowserAccessibilityTest, HitTestTest) {
   BrowserAccessibility* firstChild =
       [accessibility_ accessibilityHitTest:NSMakePoint(50, 50)];
-  EXPECT_TRUE(
-      [[firstChild accessibilityAttributeValue:NSAccessibilityTitleAttribute]
-        isEqualToString:@"Child1"]);
+  EXPECT_NSEQ(@"Child1",
+      [firstChild accessibilityAttributeValue:NSAccessibilityTitleAttribute]);
 }
 
 // Test doing a hit test on the edge of a child.
 TEST_F(BrowserAccessibilityTest, EdgeHitTest) {
   BrowserAccessibility* firstChild =
       [accessibility_ accessibilityHitTest:NSMakePoint(0, 0)];
-  EXPECT_TRUE(
-      [[firstChild accessibilityAttributeValue:NSAccessibilityTitleAttribute]
-        isEqualToString:@"Child1"]);
+  EXPECT_NSEQ(@"Child1",
+      [firstChild accessibilityAttributeValue:NSAccessibilityTitleAttribute]);
 }
 
 // This will test a hit test with invalid coordinates.  It is assumed that
 // the hit test has been narrowed down to this object or one of its children
 // so it should return itself since it has no better hit result.
 TEST_F(BrowserAccessibilityTest, InvalidHitTestCoordsTest) {
   BrowserAccessibility* hitTestResult =
       [accessibility_ accessibilityHitTest:NSMakePoint(-50, 50)];
-  EXPECT_TRUE([accessibility_ isEqualTo:hitTestResult]);
+  EXPECT_NSEQ(accessibility_, hitTestResult);
 }
 
 // Test to ensure querying standard attributes works.
 TEST_F(BrowserAccessibilityTest, BasicAttributeTest) {
   NSString* helpText = [accessibility_
       accessibilityAttributeValue:NSAccessibilityHelpAttribute];
-  EXPECT_TRUE([helpText isEqualToString: @"HelpText"]);
+  EXPECT_NSEQ(@"HelpText", helpText);
 }
 
 // Test querying for an invalid attribute to ensure it doesn't crash.
 TEST_F(BrowserAccessibilityTest, InvalidAttributeTest) {
   NSString* shouldBeNil = [accessibility_
       accessibilityAttributeValue:@"NSAnInvalidAttribute"];
   EXPECT_TRUE(shouldBeNil == nil);
 }