DevTools: introduce uiSourceCode.mimeType() method

third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 76 matching lines @@
   /**
    * @return {string}
    */
   name() {
     return this._name;
   }
 
   /**
    * @return {string}
    */
+  mimeType() {
+    return this._project.mimeType(this);
+  }
+
+  /**
+   * @return {string}
+   */
   url() {
     return this._url;
   }
 
   /**
    * @return {string}
    */
   parentURL() {
     return this._parentURL;
   }
@@ skipping 820 matching lines @@
 Workspace.UISourceCodeMetadata = class {
   /**
    * @param {?Date} modificationTime
    * @param {?number} contentSize
    */
   constructor(modificationTime, contentSize) {
     this.modificationTime = modificationTime;
     this.contentSize = contentSize;
   }
 };