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

chrome/browser/cocoa/previewable_contents_controller_unittest.mm

Index: chrome/browser/cocoa/previewable_contents_controller_unittest.mm
===================================================================
--- chrome/browser/cocoa/previewable_contents_controller_unittest.mm	(revision 66159)
+++ chrome/browser/cocoa/previewable_contents_controller_unittest.mm	(working copy)
@@ -11,16 +11,6 @@
 #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 {
@@ -36,11 +26,6 @@
 
 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*.