Removing action arguments checks.

1. The checks for action arguments are not needed since they
   may cause trouble for developers if we add more args to
   an action.

bug:6414006

Change-Id: Ia4212b52be183b1ef1cfd2561ce618cef2b015e4

Author: sganov

services/java/com/android/server/accessibility/AccessibilityManagerService.java

@@ -1765,8 +1765,7 @@ public boolean canPerformActionLocked(Service service, int windowId, int action,
                 Bundle arguments) {
             return canRetrieveWindowContent(service)
                 && isRetrievalAllowingWindow(windowId)
-                && isActionPermitted(action)
-                && isActionArgumentsValid(action, arguments);
+                && isActionPermitted(action);
         }
 
         public boolean canRetrieveWindowContent(Service service) {
@@ -1790,29 +1789,6 @@ private boolean isActionPermitted(int action) {
              return (VALID_ACTIONS & action) != 0;
         }
 
-        private boolean isActionArgumentsValid(int action, Bundle arguments) {
-            switch (action) {
-                case AccessibilityNodeInfo.ACTION_NEXT_AT_GRANULARITY:
-                case AccessibilityNodeInfo.ACTION_PREVIOUS_AT_GRANULARITY: {
-                    if (arguments.size() == 1) {
-                        final int granularity = arguments.getInt(
-                                AccessibilityNodeInfo.ACTION_ARGUMENT_GRANULARITY_INT);
-                        return (granularity & VALID_GRANULARITIES) != 0
-                                && Integer.bitCount(granularity) == 1;
-                    }
-                } break;
-                case AccessibilityNodeInfo.ACTION_NEXT_HTML_ELEMENT:
-                case AccessibilityNodeInfo.ACTION_PREVIOUS_HTML_ELEMENT: {
-                    if (arguments.size() == 1) {
-                        String element = arguments.getString(
-                                AccessibilityNodeInfo.ACTION_ARGUMENT_HTML_ELEMENT_STRING);
-                        return !TextUtils.isEmpty(element);
-                    }
-                } break;
-            }
-            return false;
-        }
-
         private void enforceCallingPermission(String permission, String function) {
             if (OWN_PROCESS_ID == Binder.getCallingPid()) {
                 return;