Experiment with dislodging the Extension Shelf and having it only appear on t...

chrome/browser/dom_ui/dom_ui.h

Index: chrome/browser/dom_ui/dom_ui.h
===================================================================
--- chrome/browser/dom_ui/dom_ui.h	(revision 24842)
+++ chrome/browser/dom_ui/dom_ui.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 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.
 
@@ -61,6 +61,12 @@
     return force_bookmark_bar_visible_;
   }
 
+  // Returns true if the extension shelf should be forced to being visible
+  // (if it contains any items), overriding the user's preference.
+  bool force_extension_shelf_visible() const {
+    return force_extension_shelf_visible_;
+  }
+
   // Returns true if the location bar should be focused by default rather than
   // the page contents. Some pages will want to use this to encourage the user
   // to type in the URL bar.
@@ -116,6 +122,7 @@
   // bool options default to false. See the public getters for more information.
   bool hide_favicon_;
   bool force_bookmark_bar_visible_;
+  bool force_extension_shelf_visible_;
   bool focus_location_bar_by_default_;
   bool should_hide_url_;
   string16 overridden_title_;  // Defaults to empty string.
@@ -146,7 +153,7 @@
 class DOMMessageHandler {
  public:
   DOMMessageHandler() : dom_ui_(NULL) {}
-  virtual ~DOMMessageHandler() {};
+  virtual ~DOMMessageHandler() {}
 
   // Attaches |this| to |dom_ui| in order to handle messages from it.  Declared
   // virtual so that subclasses can do special init work as soon as the dom_ui