Move leak_detector_controller to its own directory

chrome/browser/metrics/leak_detector/leak_detector_controller.h

 // Copyright 2016 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_METRICS_LEAK_DETECTOR_CONTROLLER_H_
-#define CHROME_BROWSER_METRICS_LEAK_DETECTOR_CONTROLLER_H_
+#ifndef CHROME_BROWSER_METRICS_LEAK_DETECTOR_LEAK_DETECTOR_CONTROLLER_H_
+#define CHROME_BROWSER_METRICS_LEAK_DETECTOR_LEAK_DETECTOR_CONTROLLER_H_
 
 #include <vector>
 
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "components/metrics/leak_detector/leak_detector.h"
 #include "components/metrics/proto/memory_leak_report.pb.h"
 
 namespace metrics {
 
@@ skipping 22 matching lines @@
   const MemoryLeakReportProto::Params params_;
 
   // For thread safety.
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(LeakDetectorController);
 };
 
 }  // namespace metrics
 
-#endif  // CHROME_BROWSER_METRICS_LEAK_DETECTOR_CONTROLLER_H_
+#endif  // CHROME_BROWSER_METRICS_LEAK_DETECTOR_LEAK_DETECTOR_CONTROLLER_H_