Handle more scale factors for extension Browser Action 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 176 matching lines @@
   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;
 
-struct IconRepresentationInfo {
-  // Size in pixels.
-  const int size;
-  // Size as a string that will be used to retrieve representation value from
-  // ExtensionAction SetIcon function arguments.
-  const char* const size_string;
-  // Scale factor for which the representation should be used.
-  const ui::ScaleFactor scale;
-};
-
-// The icon representations for extension actions.
-extern const IconRepresentationInfo kExtensionActionIconSizes[];
-const size_t kNumExtensionActionIconSizes = 2u;
-
 // 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_