Extract permission alias info from PermissionsProvider

extensions/common/permissions/permissions_info.h

Index: extensions/common/permissions/permissions_info.h
diff --git a/extensions/common/permissions/permissions_info.h b/extensions/common/permissions/permissions_info.h
index 8f407de35ec7f520cb4b15b59811867eab813f36..b647023a3580dba729dd7c9fba2e72a3942aba1c 100644
--- a/extensions/common/permissions/permissions_info.h
+++ b/extensions/common/permissions/permissions_info.h
@@ -15,12 +15,15 @@
 #include "base/callback.h"
 #include "base/lazy_instance.h"
 #include "base/macros.h"
+#include "extensions/common/alias_provider.h"
 #include "extensions/common/permissions/api_permission.h"
 #include "extensions/common/permissions/api_permission_set.h"
 #include "extensions/common/permissions/permissions_provider.h"
 
 namespace extensions {
 
+class Alias;
+
 // A global object that holds the extension permission instances and provides
 // methods for accessing them.
 class PermissionsInfo {
@@ -28,7 +31,8 @@ class PermissionsInfo {
   static PermissionsInfo* GetInstance();
 
   // Initializes the permissions from the provider.
-  void AddProvider(const PermissionsProvider& provider);
+  void AddProvider(const PermissionsProvider& permission_provider,
+                   const AliasProvider& alias_provider);
 
   // Returns the permission with the given |id|, and NULL if it doesn't exist.
   const APIPermissionInfo* GetByID(APIPermission::ID id) const;
@@ -59,7 +63,7 @@ class PermissionsInfo {
   virtual ~PermissionsInfo();
 
   // Registers an |alias| for a given permission |name|.
-  void RegisterAlias(const char* name, const char* alias);
+  void RegisterAlias(const Alias& alias);
 
   // Registers a permission with the specified attributes and flags.
   void RegisterPermission(std::unique_ptr<APIPermissionInfo> permission);