Change histogram.h includes to histogram_macros.h in components/

components/history/core/browser/top_sites_impl_unittest.cc

 // 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 "components/history/core/browser/top_sites_impl.h"
 
 #include "base/bind.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
+#include "base/metrics/histogram_macros.h"

[Ilya Sherman, 2015/06/15 21:39:50]

Where is this used?

[Alexei Svitkine (slow), 2015/06/16 15:18:36]

Apparently nowhere. Removed.

 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/testing_pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "components/history/core/browser/history_constants.h"
 #include "components/history/core/browser/history_database_params.h"
 #include "components/history/core/browser/history_db_task.h"
 #include "components/history/core/browser/history_types.h"
 #include "components/history/core/browser/top_sites.h"
 #include "components/history/core/browser/top_sites_cache.h"
@@ skipping 1630 matching lines @@
   EXPECT_EQ("http://forced/5", querier.urls()[5].url.spec());
   EXPECT_EQ(6000u, querier.urls()[5].last_forced_time.ToJsTime());
   scoped_refptr<base::RefCountedMemory> thumbnail_data;
   ASSERT_TRUE(top_sites()->GetPageThumbnail(GURL("http://forced/5"), false,
                                             &thumbnail_data));
   ASSERT_TRUE(
       ThumbnailsAreEqual(orig_thumbnail_data.get(), thumbnail_data.get()));
 }
 
 }  // namespace history