[DevTools] Introduce Project.isServiceProject method.

third_party/WebKit/Source/devtools/front_end/sources/SourcesView.js

 // Copyright 2014 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.
 /**
  * @implements {Sources.TabbedEditorContainerDelegate}
  * @implements {UI.Searchable}
  * @implements {UI.Replaceable}
  * @unrestricted
  */
 Sources.SourcesView = class extends UI.VBox {
@@ skipping 235 matching lines @@
    */
   _uiSourceCodeAdded(event) {
     var uiSourceCode = /** @type {!Workspace.UISourceCode} */ (event.data);
     this._addUISourceCode(uiSourceCode);
   }
 
   /**
    * @param {!Workspace.UISourceCode} uiSourceCode
    */
   _addUISourceCode(uiSourceCode) {
-    if (uiSourceCode.isFromServiceProject())
+    if (uiSourceCode.project().isServiceProject())
       return;
     this._editorContainer.addUISourceCode(uiSourceCode);
   }
 
   _uiSourceCodeRemoved(event) {
     var uiSourceCode = /** @type {!Workspace.UISourceCode} */ (event.data);
     this._removeUISourceCodes([uiSourceCode]);
   }
 
   /**
@@ skipping 485 matching lines @@
    * @return {boolean}
    */
   handleAction(context, actionId) {
     var sourcesView = UI.context.flavor(Sources.SourcesView);
     if (!sourcesView)
       return false;
     sourcesView._editorContainer.closeAllFiles();
     return true;
   }
 };