DevTools: Only provide static script content to UISourceCode

third_party/WebKit/Source/devtools/front_end/persistence/FileSystemWorkspaceBinding.js

 /*
  * Copyright (C) 2013 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 292 matching lines @@
         callback(result);
         return;
       }
       var index = result.indexOf(',');
       callback(result.substring(index + 1));
     }
   }
 
   /**
    * @override
+   * @param {!Workspace.UISourceCode} uiSourceCode
+   * @return {!Promise<?string>}
+   */
+  requestOriginalFileContent(uiSourceCode) {
+    return Promise.resolve(/** @type {?string} **/ (null));
+  }
+
+
+  /**
+   * @override
    * @return {boolean}
    */
   canSetFileContent() {
     return true;
   }
 
   /**
    * @override
    * @param {!Workspace.UISourceCode} uiSourceCode
    * @param {string} newContent
@@ skipping 259 matching lines @@
     uiSourceCode[Persistence.FileSystemWorkspaceBinding._metadata] = null;
     uiSourceCode.checkContentUpdated();
   }
 
   dispose() {
     this.removeProject();
   }
 };
 
 Persistence.FileSystemWorkspaceBinding._metadata = Symbol('FileSystemWorkspaceBinding.Metadata');