[Mac] Removes the match preview tear image. Also removes the underlying reso...

chrome/browser/cocoa/previewable_contents_controller_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>
 
 #import "base/scoped_nsobject.h"
 #include "chrome/browser/cocoa/browser_test_helper.h"
 #include "chrome/browser/cocoa/cocoa_test_helper.h"
 #import "chrome/browser/cocoa/previewable_contents_controller.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
-@interface PreviewableContentsController (ExposedForTesting)
-- (NSButton*)closeButton;
-@end
-
-@implementation PreviewableContentsController (ExposedForTesting)
-- (NSButton*)closeButton {
-  return closeButton_;
-}
-@end
-
 namespace {
 
 class PreviewableContentsControllerTest : public CocoaTest {
  public:
   virtual void SetUp() {
     CocoaTest::SetUp();
     controller_.reset([[PreviewableContentsController alloc] init]);
     [[test_window() contentView] addSubview:[controller_ view]];
   }
 
   scoped_nsobject<PreviewableContentsController> controller_;
 };
 
 TEST_VIEW(PreviewableContentsControllerTest, [controller_ view])
 
-// Adds the view to a window and displays it.
-TEST_F(PreviewableContentsControllerTest, TestImagesLoadedProperly) {
-  EXPECT_TRUE([[[controller_ closeButton] image] isValid]);
-}
-
 // TODO(rohitrao): Test showing and hiding the preview.  This may require
 // changing the interface to take in a TabContentsView* instead of a
 // TabContents*.
 
 }  // namespace