Add missing (and remove superfluous) 'explicit' from constructors.

chrome/common/extensions/permissions/api_permission.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_PERMISSIONS_API_PERMISSION_H_
 #define CHROME_COMMON_EXTENSIONS_PERMISSIONS_API_PERMISSION_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 249 matching lines @@
     return (flags_ & kFlagMustBeOptional) != 0;
   }
 
  private:
   // Instances should only be constructed from within PermissionsInfo.
   friend class PermissionsInfo;
   // Implementations of APIPermission will want to get the permission message,
   // but this class's implementation should be hidden from everyone else.
   friend class APIPermission;
 
-  explicit APIPermissionInfo(
+  APIPermissionInfo(
       APIPermission::ID id,
       const char* name,
       int l10n_message_id,
       PermissionMessage::ID message_id,
       int flags,
       APIPermissionConstructor api_permission_constructor);
 
   // Register ALL the permissions!
   static void RegisterAllPermissions(PermissionsInfo* info);
 
   // Returns the localized permission message associated with this api.
   // Use GetMessage_ to avoid name conflict with macro GetMessage on Windows.
   PermissionMessage GetMessage_() const;
 
   const APIPermission::ID id_;
   const char* const name_;
   const int flags_;
   const int l10n_message_id_;
   const PermissionMessage::ID message_id_;
   const APIPermissionConstructor api_permission_constructor_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_PERMISSIONS_API_PERMISSION_H_