Revert "Update includes for webrtc/{base => rtc_base} rename (3/3)"

webrtc/rtc_base/callback_unittest.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "webrtc/rtc_base/callback.h"
-#include "webrtc/rtc_base/bind.h"
-#include "webrtc/rtc_base/gunit.h"
-#include "webrtc/rtc_base/keep_ref_until_done.h"
-#include "webrtc/rtc_base/refcount.h"
+#include "webrtc/base/bind.h"
+#include "webrtc/base/callback.h"
+#include "webrtc/base/gunit.h"
+#include "webrtc/base/keep_ref_until_done.h"
+#include "webrtc/base/refcount.h"
 
 namespace rtc {
 
 namespace {
 
 void f() {}
 int g() { return 42; }
 int h(int x) { return x * x; }
 void i(int& x) { x *= x; }  // NOLINT: Testing refs
 
@@ skipping 105 matching lines @@
     Callback0<void> cb = KeepRefUntilDone(t_scoped_ref);
     t_scoped_ref = nullptr;
     EXPECT_EQ(1, t.RefCount());
     cb();
     EXPECT_EQ(1, t.RefCount());
   }
   EXPECT_EQ(0, t.RefCount());
 }
 
 }  // namespace rtc