Cleanup: IWYU for base/gtest_prod_util.h.

chrome/browser/image_holder.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_IMAGE_HOLDER_H_
 #define CHROME_BROWSER_IMAGE_HOLDER_H_
 
+#include "base/gtest_prod_util.h"
 #include "base/memory/scoped_vector.h"
 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia.h"
 #include "url/gurl.h"
 
 class Profile;
 
 namespace chrome {
 
@@ skipping 45 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(ImageHolderTest, CreateBitmapFetcherTest);
   FRIEND_TEST_ALL_PREFIXES(ImageHolderTest, OnFetchCompleteTest);
   FRIEND_TEST_ALL_PREFIXES(ImageHolderTest, IsFetchingDoneTest);
 
   DISALLOW_COPY_AND_ASSIGN(ImageHolder);
 };
 
 }  // namespace chrome.
 
 #endif  // CHROME_BROWSER_IMAGE_HOLDER_H_