[HTerm-Crosh] Add key shortcut for opening Crosh on ChromeOS Aura.

ash/shell_delegate.h

 // Copyright (c) 2012 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.
 
 #ifndef ASH_SHELL_DELEGATE_H_
 #define ASH_SHELL_DELEGATE_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 29 matching lines @@
 
   // Source requesting the window list.
   enum CycleSource {
     // Windows are going to be used for alt-tab (or F5).
     SOURCE_KEYBOARD,
 
     // Windows are going to be cycled from the launcher.
     SOURCE_LAUNCHER,
   };
 
+  // Type of content to be shown when opening new tab.
+  enum NewTabContentType {
+    // Crosh should ber opened in the new tab.
+    NEW_TAB_CONTENT_CROSH
+  };
+
   // The Shell owns the delegate.
   virtual ~ShellDelegate() {}
 
   // Invoked to create a new status area. Can return NULL.
   virtual views::Widget* CreateStatusArea() = 0;
 
 #if defined(OS_CHROMEOS)
   // Invoked when a user uses Ctrl-Shift-L to lock the screen.
   virtual void LockScreen() = 0;
 #endif
@@ skipping 10 matching lines @@
 
   // Returns a list of windows to cycle with keyboard shortcuts (e.g. alt-tab
   // or the window switching key).  If |order_by_activity| is true then windows
   // are returned in most-recently-used order with the currently active window
   // at the front of the list.  Otherwise any order may be returned.  The list
   // does not contain NULL pointers.
   virtual std::vector<aura::Window*> GetCycleWindowList(
       CycleSource source,
       CycleOrder order) const = 0;
 
+  virtual void OpenNewTab(NewTabContentType type) = 0;

[Ben Goodger (Google), 2012/01/30 19:06:16]

This function should take a const GURL& instead of a new enum type.

You will then also have to create a shell_urls.h/cc file in ash/ that contains
the URL of the terminal. You will want to create a pretty URL for it instead of
just loading it via an extension protocol.

Look at src/chrome/common/url_constants.cc/h for inspiration. 

The pretty URL would be something like this: chrome://terminal

Then you would have to add handling to the browser to resolve this pretty URL to
an extension. There is already code that does this for chrome://bookmarks (since
the bookmarks manager page is implemented as an extension). Look at extension.cc
and kChromeUIBookmarksHost.

+
   // Launcher related methods --------------------------------------------------
 
   // Invoked when the user clicks on button in the launcher to create a new
   // window.
   virtual void CreateNewWindow() = 0;
 
   // Invoked when the user clicks on a window entry in the launcher.
   virtual void LauncherItemClicked(const LauncherItem& item) = 0;
 
   // Returns the resource id of the image to show on the browser shortcut
   // button.
   virtual int GetBrowserShortcutResourceId() = 0;
 
   // Returns the title to display for the specified launcher item.
   virtual string16 GetLauncherItemTitle(const LauncherItem& item) = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_DELEGATE_H_