Turn on verbose flag for compiling file_manager.

ui/file_manager/gallery/js/compiled_resources.gyp

Index: ui/file_manager/gallery/js/compiled_resources.gyp
diff --git a/ui/file_manager/gallery/js/compiled_resources.gyp b/ui/file_manager/gallery/js/compiled_resources.gyp
index f0553c3881dd0bdd9906ffedfac2ac06ef79bdec..73e33772e31640e2afb3cdec296146a13b77f705 100644
--- a/ui/file_manager/gallery/js/compiled_resources.gyp
+++ b/ui/file_manager/gallery/js/compiled_resources.gyp
@@ -38,9 +38,12 @@
           '../../externs/gallery_background.js',
           '../../externs/platform.js',
         ],
+        'closure_args': [
+          'warning_level=VERBOSE',
+        ],
       },
       'includes': [
-        '../../../../third_party/closure_compiler/compile_js.gypi'
+        '../../../../third_party/closure_compiler/compile_js.gypi',
       ],
     },
     {
@@ -105,17 +108,17 @@
           '../../file_manager/foreground/js/volume_manager_wrapper.js',
           '../../file_manager/background/js/volume_manager.js',
           '../../image_loader/image_loader_client.js',
-          './image_editor/commands.js',
-          './image_editor/exif_encoder.js',
-          './image_editor/filter.js',
-          './image_editor/image_adjust.js',
+          './image_editor/image_util.js',
+          './image_editor/viewport.js',
           './image_editor/image_buffer.js',
+          './image_editor/image_view.js',
+          './image_editor/commands.js',
           './image_editor/image_editor.js',
-          './image_editor/image_encoder.js',
           './image_editor/image_transform.js',
-          './image_editor/image_util.js',
-          './image_editor/image_view.js',
-          './image_editor/viewport.js',
+          './image_editor/image_adjust.js',
+          './image_editor/filter.js',
+          './image_editor/image_encoder.js',
+          './image_editor/exif_encoder.js',
           './dimmable_ui_controller.js',
           './entry_list_watcher.js',
           './error_banner.js',
@@ -142,9 +145,12 @@
           '../../externs/platform.js',
           '../../externs/webview_tag.js',
         ],
+        'closure_args': [
+          'warning_level=VERBOSE',
+        ],
       },
       'includes': [
-        '../../../../third_party/closure_compiler/compile_js.gypi'
+        '../../../../third_party/closure_compiler/compile_js.gypi',
       ],
     }
   ],