Turn on verbose flag for compiling file_manager.

ui/file_manager/audio_player/elements/compiled_resources.gyp

 # Copyright 2015 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': [
     {
       'target_name': 'volume_controller',
       'variables': {
         'depends': [],
         'externs': []
       },
       'includes': [
-        '../../../../third_party/closure_compiler/compile_js.gypi'
+        '../../compile_js.gypi'
       ]
     },
     {
       'target_name': 'track_list',
       'variables': {
         'depends': [],
         'externs': [
           '../../externs/es7_workaround.js'
         ]
       },
       'includes': [
-        '../../../../third_party/closure_compiler/compile_js.gypi'
+        '../../compile_js.gypi'
       ]
     },
     {
       'target_name': 'control_panel',
       'variables': {
         'depends': [],
         'externs': []
       },
       'includes': [
-        '../../../../third_party/closure_compiler/compile_js.gypi'
+        '../../compile_js.gypi'
       ]
     },
     {
       'target_name': 'audio_player',
       'variables': {
         'depends': [
           '../js/audio_player_model.js',
           'track_list.js',
         ],
         'externs': [
-          '<(EXTERNS_DIR)/chrome_extensions.js',
           '../../externs/es7_workaround.js',
         ]
       },
       'includes': [
-        '../../../../third_party/closure_compiler/compile_js.gypi'
+        '../../compile_js.gypi'
       ]
     }
   ],
 }