KeyguardManager: Add isKeyguardLocked() and isKeyguardSecure()

BUG: 3402847

Change-Id: I725838c9d96617dd4497f9c80417cd623eceb846
Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/core/java/android/view/IWindowManager.aidl b/core/java/android/view/IWindowManager.aidl
index 51653df..dd8242a 100644
--- a/core/java/android/view/IWindowManager.aidl
+++ b/core/java/android/view/IWindowManager.aidl
@@ -100,6 +100,8 @@
     void disableKeyguard(IBinder token, String tag);
     void reenableKeyguard(IBinder token);
     void exitKeyguardSecurely(IOnKeyguardExitResult callback);
+    boolean isKeyguardLocked();
+    boolean isKeyguardSecure();
     boolean inKeyguardRestrictedInputMode();
 
     void closeSystemDialogs(String reason);