Generalize ExtensionIconSet to store icon paths for custom size sets

chrome/common/extensions/extension.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 CHROME_COMMON_EXTENSIONS_EXTENSION_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_H_
 
 #include <algorithm>
 #include <iosfwd>
 #include <map>
@@ skipping 390 matching lines @@
   // the appropriate header & footer.
   static bool FormatPEMForFileOutput(const std::string& input,
                                      std::string* output,
                                      bool is_public);
 
   // Given an extension, icon size, and match type, read a valid icon if present
   // and decode it into result. In the browser process, this will DCHECK if not
   // called on the file thread. To easily load extension images on the UI
   // thread, see ImageLoadingTracker.
   static void DecodeIcon(const Extension* extension,
-                         ExtensionIconSet::Icons icon_size,
+                         int icon_size,
                          ExtensionIconSet::MatchType match_type,
                          scoped_ptr<SkBitmap>* result);
 
   // Given an extension and icon size, read it if present and decode it into
   // result. In the browser process, this will DCHECK if not called on the
   // file thread. To easily load extension images on the UI thread, see
   // ImageLoadingTracker.
   static void DecodeIcon(const Extension* extension,
-                         ExtensionIconSet::Icons icon_size,
+                         int icon_size,
                          scoped_ptr<SkBitmap>* result);
 
   // Given an icon_path and icon size, read it if present and decode it into
   // result. In the browser process, this will DCHECK if not called on the
   // file thread. To easily load extension images on the UI thread, see
   // ImageLoadingTracker.
   static void DecodeIconFromPath(const FilePath& icon_path,
-                                 ExtensionIconSet::Icons icon_size,
+                                 int icon_size,
                                  scoped_ptr<SkBitmap>* result);
 
   // Returns the default extension/app icon (for extensions or apps that don't
   // have one).
   static const SkBitmap& GetDefaultIcon(bool is_app);
 
   // Returns the base extension url for a given |extension_id|.
   static GURL GetBaseURLFromExtensionId(const std::string& extension_id);
 
   // Adds an extension to the scripting whitelist. Used for testing only.
@@ skipping 756 matching lines @@
 
   UpdatedExtensionPermissionsInfo(
       const Extension* extension,
       const PermissionSet* permissions,
       Reason reason);
 };
 
 } // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_H_