Add "sidebar" section to extension manifest:...

chrome/common/extensions/extension_sidebar_defaults.h

+// Copyright (c) 2010 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 CHROME_COMMON_EXTENSIONS_EXTENSION_SIDEBAR_DEFAULTS_H_
+#define CHROME_COMMON_EXTENSIONS_EXTENSION_SIDEBAR_DEFAULTS_H_
+#pragma once
+
+#include <string>
+
+#include "base/string16.h"
+#include "googleurl/src/gurl.h"
+
+class SkBitmap;
+
+// ExtensionSidebarDefaults encapsulates the default parameters of a sidebar,
+// as defined in the extension manifest.
+class ExtensionSidebarDefaults {
+ public:
+  ExtensionSidebarDefaults() {}
+  ~ExtensionSidebarDefaults() {}

[Aaron Boodman, 2011/01/20 00:36:11]

Nit: You don't need these, they are implied by the compiler.

[Aleksey Shlyapnikov, 2011/01/20 02:41:43]

Done.

+
+  // Default title, stores manifest default_title key value.
+  void set_default_title(const string16& title) {
+    default_title_ = title;
+  }
+  const string16& default_title() const { return default_title_; }
+
+  // Default icon path, stores manifest default_icon key value.
+  void set_default_icon_path(const std::string& path) {
+    default_icon_path_ = path;
+  }
+  std::string default_icon_path() const {

[Aaron Boodman, 2011/01/20 00:36:11]

Return const ref here?

[Aleksey Shlyapnikov, 2011/01/20 02:41:43]

Done.

+    return default_icon_path_;
+  }
+
+  // Default sidebar url, resolved and verified against extension permissions.
+  void set_default_url(const GURL& url) {
+    default_url_ = url;
+  }
+  GURL default_url() const {

[Aaron Boodman, 2011/01/20 00:36:11]

const ref here too

[Aleksey Shlyapnikov, 2011/01/20 02:41:43]

Done.

+    return default_url_;
+  }
+
+ private:
+  string16 default_title_;
+  std::string default_icon_path_;
+  GURL default_url_;
+};
+
+#endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_SIDEBAR_DEFAULTS_H_