Handle more scale factors for extension Browser Action icons

chrome/browser/extensions/extension_action.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_BROWSER_EXTENSIONS_EXTENSION_ACTION_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_ACTION_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "chrome/common/extensions/api/extension_action/action_info.h"
+#include "extensions/common/constants.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/image/image.h"
 
 class GURL;
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
@@ skipping 15 matching lines @@
 class ExtensionAction {
  public:
   // The action that the UI should take after the ExtensionAction is clicked.
   enum ShowAction {
     ACTION_NONE,
     ACTION_SHOW_POPUP,
     // We don't need a SHOW_CONTEXT_MENU because that's handled separately in
     // the UI.
   };
 
+  static extension_misc::ExtensionIcons ActionIconSize();
+
   // Use this ID to indicate the default state for properties that take a tab_id
   // parameter.
   static const int kDefaultTabId;
 
-  // Max size (both dimensions) for page actions.
-  static const int kPageActionIconMaxSize;
-
   ExtensionAction(const extensions::Extension& extension,
                   extensions::ActionInfo::Type action_type,
                   const extensions::ActionInfo& manifest_data);
   ~ExtensionAction();
 
   // extension id
   const std::string& extension_id() const { return extension_id_; }
 
   // What kind of action is this?
   extensions::ActionInfo::Type action_type() const {
@@ skipping 234 matching lines @@
 };
 
 template<>
 struct ExtensionAction::ValueTraits<int> {
   static int CreateEmpty() {
     return -1;
   }
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ACTION_H_