metrics: Add leak detector controller in Chrome OS metrics system

components/metrics.gypi

 # 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.
 
 {
   'targets': [
     {
       # GN version: //components/metrics
       'target_name': 'metrics',
       'type': 'static_library',
@@ skipping 241 matching lines @@
           ],
           'sources': [
             'metrics/leak_detector/call_stack_manager.cc',
             'metrics/leak_detector/call_stack_manager.h',
             'metrics/leak_detector/call_stack_table.cc',
             'metrics/leak_detector/call_stack_table.h',
             'metrics/leak_detector/custom_allocator.cc',
             'metrics/leak_detector/custom_allocator.h',
             'metrics/leak_detector/leak_analyzer.cc',
             'metrics/leak_detector/leak_analyzer.h',
+            'metrics/leak_detector/leak_detector.cc',
+            'metrics/leak_detector/leak_detector.h',
             'metrics/leak_detector/leak_detector_impl.cc',
             'metrics/leak_detector/leak_detector_impl.h',
             'metrics/leak_detector/leak_detector_value_type.cc',
             'metrics/leak_detector/leak_detector_value_type.h',
             'metrics/leak_detector/ranked_list.cc',
             'metrics/leak_detector/ranked_list.h',
           ],
         },
       ],
     }],
@@ skipping 51 matching lines @@
           ],
           'sources': [
             'metrics/profiler/ios/ios_tracking_synchronizer_delegate.cc',
             'metrics/profiler/ios/ios_tracking_synchronizer_delegate.h',
           ],
         },
       ],
     }],
   ],
 }