Support "always allow" for runtime script execution

chrome/browser/extensions/permissions_updater.cc

Index: chrome/browser/extensions/permissions_updater.cc
diff --git a/chrome/browser/extensions/permissions_updater.cc b/chrome/browser/extensions/permissions_updater.cc
index d95f812f68813406144a27be1f73a34871335c27..816311244f05d5ba5d90ca84f596d2b41ea073ad 100644
--- a/chrome/browser/extensions/permissions_updater.cc
+++ b/chrome/browser/extensions/permissions_updater.cc
@@ -144,9 +144,9 @@ void PermissionsUpdater::GrantActivePermissions(const Extension* extension) {
 }
 
 void PermissionsUpdater::InitializePermissions(const Extension* extension) {
+  ExtensionPrefs* prefs = ExtensionPrefs::Get(browser_context_);
   scoped_refptr<const PermissionSet> bounded_active =
-      GetBoundedActivePermissions(extension,
-                                  ExtensionPrefs::Get(browser_context_));
+      GetBoundedActivePermissions(extension, prefs);
 
   // We withhold permissions iff the switch to do so is enabled, the extension
   // shows up in chrome:extensions (so the user can grant withheld permissions),
@@ -175,6 +175,16 @@ void PermissionsUpdater::InitializePermissions(const Extension* extension) {
                           &granted_scriptable_hosts,
                           &withheld_scriptable_hosts);
 
+  // Add persisted permissions to granted_scriptable_hosts.
+  URLPatternSet persisted;
+  if (prefs->GetPersistedPermissions(extension->id(), &persisted)) {
+    for (URLPatternSet::const_iterator iter = persisted.begin();
+         iter != persisted.end();
+         ++iter) {
+      granted_scriptable_hosts.AddPattern(*iter);
+    }
+  }
+
   bounded_active = new PermissionSet(bounded_active->apis(),
                                      bounded_active->manifest_permissions(),
                                      granted_explicit_hosts,