Implement the inline extensions/apps install UI for Cocoa.

chrome/browser/extensions/extension_install_ui.h

 // Copyright (c) 2011 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_BROWSER_EXTENSIONS_EXTENSION_INSTALL_UI_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_UI_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 47 matching lines @@
     string16 GetAcceptButtonLabel() const;
     bool HasAbortButtonLabel() const;
     string16 GetAbortButtonLabel() const;
     string16 GetPermissionsHeader() const;
 
     // Getters for webstore metadata. Only populated when the type is
     // INLINE_INSTALL_PROMPT.
 
     // The star display logic replicates the one used by the webstore (from
     // components.ratingutils.setFractionalYellowStars). Callers pass in an
-    // "appender", which will be called back with the resource ID that they
-    // need to load/append.
-    typedef void*(*StarAppender)(int, void*);
+    // "appender", which will be repeatedly called back with the star images
+    // that they append to the star display area.
+    typedef void(*StarAppender)(const SkBitmap*, void*);
     void AppendRatingStars(StarAppender appender, void* data) const;
     string16 GetRatingCount() const;
     string16 GetUserCount() const;
     size_t GetPermissionCount() const;
     string16 GetPermission(int index) const;
 
    private:
     PromptType type_;
     // Permissions that are being requested (may not be all of an extension's
     // permissions if only additional ones are being requested)
@@ skipping 128 matching lines @@
   // Keeps track of extension images being loaded on the File thread for the
   // purpose of showing the install UI.
   ImageLoadingTracker tracker_;
 
   // Whether to show an installed bubble on app install, or use the default
   // action of opening a new tab page.
   bool use_app_installed_bubble_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_UI_H_