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

ui/gfx/image/image_mac_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.
 
 #include <Cocoa/Cocoa.h>
 
 #include "base/logging.h"
 #include "base/memory/scoped_nsobject.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/image/image.h"
@@ skipping 142 matching lines @@
   image_skia.AddRepresentation(gfx::ImageSkiaRep(
       gt::CreateBitmap(kWidth1x, kHeight1x), ui::SCALE_FACTOR_100P));
   image_skia.AddRepresentation(gfx::ImageSkiaRep(
       gt::CreateBitmap(kWidth2x, kHeight2x), ui::SCALE_FACTOR_200P));
 
   gfx::Image image(image_skia);
 
   EXPECT_EQ(1u, image.RepresentationCount());
   EXPECT_EQ(2u, image.ToImageSkia()->image_reps().size());
 
-  NSImage* ns_image = image;
+  NSImage* ns_image = image.ToNSImage();
   EXPECT_TRUE(ns_image);
 
   // Image size should be the same as the 1x bitmap.
   EXPECT_EQ([ns_image size].width, kWidth1x);
   EXPECT_EQ([ns_image size].height, kHeight1x);
 
-  EXPECT_EQ(2u, [[image representations] count]);
-  NSImageRep* ns_image_rep1 = [[image representations] objectAtIndex:0];
-  NSImageRep* ns_image_rep2 = [[image representations] objectAtIndex:1];
+  EXPECT_EQ(2u, [[ns_image representations] count]);
+  NSImageRep* ns_image_rep1 = [[ns_image representations] objectAtIndex:0];
+  NSImageRep* ns_image_rep2 = [[ns_image representations] objectAtIndex:1];
 
   if ([ns_image_rep1 size].width == kWidth1x) {
     EXPECT_EQ([ns_image_rep1 size].width, kWidth1x);
     EXPECT_EQ([ns_image_rep1 size].height, kHeight1x);
     EXPECT_EQ([ns_image_rep2 size].width, kWidth2x);
     EXPECT_EQ([ns_image_rep2 size].height, kHeight2x);
   } else {
     EXPECT_EQ([ns_image_rep1 size].width, kWidth2x);
     EXPECT_EQ([ns_image_rep1 size].height, kHeight2x);
     EXPECT_EQ([ns_image_rep2 size].width, kWidth1x);
     EXPECT_EQ([ns_image_rep2 size].height, kHeight1x);
   }
 
   // Cast to NSImage* should create a second representation.
   EXPECT_EQ(2u, image.RepresentationCount());
 }
 
 } // namespace