Standardize usage of virtual/override/final in extensions/

extensions/common/manifest_handlers/externally_connectable.h

 // Copyright 2014 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_MANIFEST_HANDLERS_EXTERNALLY_CONNECTABLE_H_
 #define EXTENSIONS_COMMON_MANIFEST_HANDLERS_EXTERNALLY_CONNECTABLE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 18 matching lines @@
 extern const char kErrorInvalidId[];
 extern const char kErrorNothingSpecified[];
 extern const char kErrorTopLevelDomainsNotAllowed[];
 extern const char kErrorWildcardHostsNotAllowed[];
 }  // namespace externally_connectable_errors
 
 // Parses the externally_connectable manifest entry.
 class ExternallyConnectableHandler : public ManifestHandler {
  public:
   ExternallyConnectableHandler();
-  virtual ~ExternallyConnectableHandler();
+  ~ExternallyConnectableHandler() override;
 
-  virtual bool Parse(Extension* extension, base::string16* error) override;
+  bool Parse(Extension* extension, base::string16* error) override;
 
  private:
-  virtual const std::vector<std::string> Keys() const override;
+  const std::vector<std::string> Keys() const override;
 
   DISALLOW_COPY_AND_ASSIGN(ExternallyConnectableHandler);
 };
 
 // The parsed form of the externally_connectable manifest entry.
 struct ExternallyConnectableInfo : public Extension::ManifestData {
  public:
   // Gets the ExternallyConnectableInfo for |extension|, or NULL if none was
   // specified.
   static ExternallyConnectableInfo* Get(const Extension* extension);
 
   // Tries to construct the info based on |value|, as it would have appeared in
   // the manifest. Sets |error| and returns an empty scoped_ptr on failure.
   static scoped_ptr<ExternallyConnectableInfo> FromValue(
       const base::Value& value,
       bool allow_all_urls,
       std::vector<InstallWarning>* install_warnings,
       base::string16* error);
 
-  virtual ~ExternallyConnectableInfo();
+  ~ExternallyConnectableInfo() override;
 
   // The URL patterns that are allowed to connect/sendMessage.
   const URLPatternSet matches;
 
   // The extension IDs that are allowed to connect/sendMessage. Sorted.
   const std::vector<std::string> ids;
 
   // True if any extension is allowed to connect. This would have corresponded
   // to an ID of "*" in |ids|.
   const bool all_ids;
@@ skipping 14 matching lines @@
                             bool all_ids,
                             bool accepts_tls_channel_id);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ExternallyConnectableInfo);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_MANIFEST_HANDLERS_EXTERNALLY_CONNECTABLE_H_