Remove deprecated gfx::Image::operator NSImage*().

chrome/browser/ui/cocoa/hover_image_button_unittest.mm

 // Copyright (c) 2012 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/memory/scoped_nsobject.h"
 #import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
 #import "chrome/browser/ui/cocoa/hover_image_button.h"
 #include "grit/theme_resources.h"
@@ skipping 18 matching lines @@
     [button_ drawRect:[button_ bounds]];
     [button_ unlockFocus];
   }
 
   HoverImageButton* button_;
 };
 
 // Test mouse events.
 TEST_F(HoverImageButtonTest, ImageSwap) {
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-  NSImage* image = rb.GetNativeImageNamed(IDR_HOME);
-  NSImage* hover = rb.GetNativeImageNamed(IDR_BACK);
+  NSImage* image = rb.GetNativeImageNamed(IDR_HOME).ToNSImage();
+  NSImage* hover = rb.GetNativeImageNamed(IDR_BACK).ToNSImage();
   [button_ setDefaultImage:image];
   [button_ setHoverImage:hover];
 
   [button_ mouseEntered:nil];
   DrawRect();
   EXPECT_EQ([button_ image], hover);
   [button_ mouseExited:nil];
   DrawRect();
   EXPECT_NE([button_ image], hover);
   EXPECT_EQ([button_ image], image);
 }
 
 // Test mouse events.
 TEST_F(HoverImageButtonTest, Opacity) {
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-  NSImage* image = rb.GetNativeImageNamed(IDR_HOME);
+  NSImage* image = rb.GetNativeImageNamed(IDR_HOME).ToNSImage();
   [button_ setDefaultImage:image];
   [button_ setDefaultOpacity:0.5];
   [button_ setHoverImage:image];
   [button_ setHoverOpacity:1.0];
 
   [button_ mouseEntered:nil];
   DrawRect();
   EXPECT_EQ([button_ alphaValue], 1.0);
   [button_ mouseExited:nil];
   DrawRect();
   EXPECT_EQ([button_ alphaValue], 0.5);
 }
 
 }  // namespace