Make Blacklist::IsBlacklist asynchronous (it will need to be for safe

chrome/common/extensions/extension_set.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_SET_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_SET_H_
 
 #include <iterator>
 #include <map>
 #include <string>
@@ skipping 72 matching lines @@
 
   // Adds the specified extension to the set. The set becomes an owner. Any
   // previous extension with the same ID is removed.
   void Insert(const scoped_refptr<const extensions::Extension>& extension);
 
   // Copies different items from |extensions| to the current set and returns
   // whether anything changed.
   bool InsertAll(const ExtensionSet& extensions);
 
   // Removes the specified extension.
-  void Remove(const std::string& id);
+  // Returns true if the set contained the specified extnesion.
+  bool Remove(const std::string& id);
 
   // Removes all extensions.
   void Clear();
 
   // Returns the extension ID, or empty if none. This includes web URLs that
   // are part of an extension's web extent.
   std::string GetExtensionOrAppIDByURL(const ExtensionURLInfo& info) const;
 
   // Returns the Extension, or NULL if none.  This includes web URLs that are
   // part of an extension's web extent.
@@ skipping 12 matching lines @@
   const extensions::Extension* GetHostedAppByOverlappingWebExtent(
       const extensions::URLPatternSet& extent) const;
 
   // Returns true if |new_url| is in the extent of the same extension as
   // |old_url|.  Also returns true if neither URL is in an app.
   bool InSameExtent(const GURL& old_url, const GURL& new_url) const;
 
   // Look up an Extension object by id.
   const extensions::Extension* GetByID(const std::string& id) const;
 
+  // Gets the IDs of all extensions in the set.
+  std::set<std::string> GetIDs() const;
+
   // Returns true if |info| should get extension api bindings and be permitted
   // to make api calls. Note that this is independent of what extension
   // permissions the given extension has been granted.
   bool ExtensionBindingsAllowed(const ExtensionURLInfo& info) const;
 
   // Returns true if |info| is an extension page that is to be served in a
   // unique sandboxed origin.
   bool IsSandboxedPage(const ExtensionURLInfo& info) const;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ExtensionSetTest, ExtensionSet);
 
   ExtensionMap extensions_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionSet);
 };
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_SET_H_