| Index: ui/file_manager/file_manager/foreground/elements/files_metadata_box.js | 
| diff --git a/ui/file_manager/file_manager/foreground/elements/files_metadata_box.js b/ui/file_manager/file_manager/foreground/elements/files_metadata_box.js | 
| index 9040b37a80b49d94af598ef1971330001db74c06..73433ee5840a8d617514e95f308cd01939c93cbb 100644 | 
| --- a/ui/file_manager/file_manager/foreground/elements/files_metadata_box.js | 
| +++ b/ui/file_manager/file_manager/foreground/elements/files_metadata_box.js | 
| @@ -18,6 +18,9 @@ var FilesMetadataBox = Polymer({ | 
| imageHeight: Number, | 
| mediaTitle: String, | 
| mediaArtist: String, | 
| + | 
| +    // Whether the size is the middle of loading. | 
| +    isSizeLoading: Boolean, | 
| }, | 
|  | 
| // Clears fields. | 
| @@ -32,6 +35,8 @@ var FilesMetadataBox = Polymer({ | 
| this.imageHeight = 0; | 
| this.mediaTitle = ''; | 
| this.mediaArtist = ''; | 
| + | 
| +    this.isSizeLoading = false; | 
| }, | 
|  | 
| /** | 
|  |