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

ash/shell_delegate.h

Index: ash/shell_delegate.h
diff --git a/ash/shell_delegate.h b/ash/shell_delegate.h
index c574cd16809e7140b8efe52a1382cab5c404819e..3b493cac21b8cbfc3618899e826ecb6bd6f167ac 100644
--- a/ash/shell_delegate.h
+++ b/ash/shell_delegate.h
@@ -47,6 +47,12 @@ class ASH_EXPORT ShellDelegate {
     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() {}
 
@@ -77,6 +83,8 @@ class ASH_EXPORT ShellDelegate {
       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