Allow arbitrary sizes for extension icons (and bookmark app icons)

extensions/common/constants.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 EXTENSIONS_COMMON_CONSTANTS_H_
 #define EXTENSIONS_COMMON_CONSTANTS_H_
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "ui/base/layout.h"
@@ skipping 172 matching lines @@
   EXTENSION_ICON_EXTRA_LARGE = 256,
   EXTENSION_ICON_LARGE = 128,
   EXTENSION_ICON_MEDIUM = 48,
   EXTENSION_ICON_SMALL = 32,
   EXTENSION_ICON_SMALLISH = 24,
   EXTENSION_ICON_ACTION = 19,
   EXTENSION_ICON_BITTY = 16,
   EXTENSION_ICON_INVALID = 0,
 };
 
-// List of sizes for extension icons that can be defined in the manifest.
-extern const int kExtensionIconSizes[];
-extern const size_t kNumExtensionIconSizes;
-
 // The extension id of the PDF extension.
 extern const char kPdfExtensionId[];
 
 // The extension id of the Office Viewer component extension.
 extern const char kQuickOfficeComponentExtensionId[];
 
 // The extension id of the Office Viewer extension on the internal webstore.
 extern const char kQuickOfficeInternalExtensionId[];
 
 // The extension id of the Office Viewer extension.
 extern const char kQuickOfficeExtensionId[];
 
 // The extension id used for testing mimeHandlerPrivate.
 extern const char kMimeHandlerPrivateTestExtensionId[];
 
 // The extension id for the production version of Hangouts.
 extern const char kProdHangoutsExtensionId[];
 
 // Extension ids used by Hangouts.
 extern const char* const kHangoutsExtensionIds[6];
 
 }  // namespace extension_misc
 
 #endif  // EXTENSIONS_COMMON_CONSTANTS_H_