Add "Request app banner" context menu in DevTools

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

 /*
  * Copyright (C) 2012 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:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 476 matching lines @@
         if (project.type() === WebInspector.projectTypes.FileSystem) {
             var path = uiSourceCode.parentPath();
             contextMenu.appendItem(WebInspector.UIString.capitalize("Rename\u2026"), this._handleContextMenuRename.bind(this, uiSourceCode));
             contextMenu.appendItem(WebInspector.UIString.capitalize("Make a ^copy\u2026"), this._handleContextMenuCreate.bind(this, project, path, uiSourceCode));
             contextMenu.appendItem(WebInspector.UIString.capitalize("Delete"), this._handleContextMenuDelete.bind(this, uiSourceCode));
             contextMenu.appendSeparator();
         }
 
         contextMenu.show();
     },
-
+    _openAppBanner: function(agent)
+    {
+      agent.openAppBanner();
+    },
     /**
      * @param {!Event} event
      * @param {!WebInspector.NavigatorFolderTreeNode} node
      */
     handleFolderContextMenu: function(event, node)
     {
         var path = node._folderPath;
         var project = node._project;
 
         var contextMenu = new WebInspector.ContextMenu(event);
-
+        if (node.parent.isRoot()) {
+          var target =  WebInspector.NetworkProject.targetForProject(project);
+          if (target.isPage()) {
+            contextMenu.appendItem(WebInspector.UIString.capitalize("Open app banner"), this._openAppBanner.bind(this, target.pageAgent()));

[pfeldman, 2016/01/14 04:43:05]

I think this item should go into the device mode tree dots menu, as a top level
item for now.

1) DeviceModeView.js should get
contextMenu.appendItemsAtLocation("deviceModeMenu")

2) declare in emulation module:
        {
            "type": "@WebInspector.ActionDelegate",
            "actionId": "emulation.open-app-banner",
            "className": "WebInspector.OpenAppBanner",
            "title": "Open app banner"
        },
        {
            "type": "context-menu-item",
            "location": "deviceModeMenu/tools",
            "order": 10,
            "actionId": "emulation.open-app-banner"
        }

[horo, 2016/01/15 10:00:22]

Implemented in DeviceModeView.
But I think DeviceModeView is not available while remote debugging.
Is my understanding wrong?
I think this "Open app banner" must be available while remote debugging.

+          }
+        }
         if (project && project.type() === WebInspector.projectTypes.FileSystem) {
             contextMenu.appendItem(WebInspector.UIString.capitalize("Refresh"), this._handleContextMenuRefresh.bind(this, project, path));
             if (node instanceof WebInspector.NavigatorFolderTreeNode) {
                 contextMenu.appendItem(WebInspector.UIString.capitalize("New ^file"), this._handleContextMenuCreate.bind(this, project, path));
                 contextMenu.appendItem(WebInspector.UIString.capitalize("Exclude ^folder"), this._handleContextMenuExclude.bind(this, project, path));
             }
         }
         contextMenu.appendSeparator();
         WebInspector.NavigatorView.appendAddFolderItem(contextMenu);
 
@@ skipping 962 matching lines @@
     {
         if (this._treeElement)
             return this._treeElement;
         this._treeElement = new WebInspector.NavigatorFolderTreeElement(this._navigatorView, this._type, this._title);
         this._treeElement.setNode(this);
         return this._treeElement;
     },
 
     __proto__: WebInspector.NavigatorTreeNode.prototype
 }