Enable permission warnings from ManifestHandlers.

extensions/common/permissions/permission_set.h

Index: extensions/common/permissions/permission_set.h
diff --git a/extensions/common/permissions/permission_set.h b/extensions/common/permissions/permission_set.h
index 14ffe12cdab85049fc29a9381218be288b0070eb..e84dc29043171786824ab253131f8d33a70a4023 100644
--- a/extensions/common/permissions/permission_set.h
+++ b/extensions/common/permissions/permission_set.h
@@ -32,10 +32,11 @@ class PermissionSet
   PermissionSet();
 
   // Creates a new permission set based on the specified data: the API
-  // permissions, host permissions, and scriptable hosts. The effective hosts
-  // of the newly created permission set will be inferred from the given
-  // host permissions.
+  // permissions, manifest key permissions, host permissions, and scriptable
+  // hosts. The effective hosts of the newly created permission set will be
+  // inferred from the given host permissions.
   PermissionSet(const APIPermissionSet& apis,
+                const ManifestPermissionSet& manifest_permissions,
                 const URLPatternSet& explicit_hosts,
                 const URLPatternSet& scriptable_hosts);
 
@@ -102,6 +103,10 @@ class PermissionSet
 
   const APIPermissionSet& apis() const { return apis_; }
 
+  const ManifestPermissionSet& manifest_permissions() const {
+      return manifest_permissions_;
+  }
+
   const URLPatternSet& effective_hosts() const { return effective_hosts_; }
 
   const URLPatternSet& explicit_hosts() const { return explicit_hosts_; }
@@ -126,6 +131,10 @@ class PermissionSet
   // extension APIs and features.
   APIPermissionSet apis_;
 
+  // The manifest key permission list is used when deciding if an extension
+  // can access certain extension APIs and features.
+  ManifestPermissionSet manifest_permissions_;
+
   // The list of hosts that can be accessed directly from the extension.
   // TODO(jstritar): Rename to "hosts_"?
   URLPatternSet explicit_hosts_;