run iwyu on base!

base/metrics/stats_table.cc

Index: base/metrics/stats_table.cc
diff --git a/base/metrics/stats_table.cc b/base/metrics/stats_table.cc
index bae2c96ffe8bba9a48926e6c6d1c5aed5185fb08..174e21926568bf11ad5f1d60cd160567941e14e4 100644
--- a/base/metrics/stats_table.cc
+++ b/base/metrics/stats_table.cc
@@ -2,21 +2,22 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/metrics/stats_table.h"
+#include <ext/hashtable.h>
+#include <string.h>
+#include <string>
+#include <utility>
 
+#include "base/basictypes.h"
 #include "base/logging.h"
+#include "base/metrics/stats_table.h"
 #include "base/process_util.h"
 #include "base/scoped_ptr.h"
 #include "base/shared_memory.h"
-#include "base/string_piece.h"
 #include "base/string_util.h"
+#include "base/synchronization/lock.h"
 #include "base/threading/platform_thread.h"
 #include "base/threading/thread_local_storage.h"
-#include "base/utf_string_conversions.h"
-
-#if defined(OS_POSIX)
-#include "errno.h"
-#endif
+#include "build/build_config.h"
 
 namespace base {