Removing private system ui flags from status bar flags logic.

- Prevent third party apps from inadvertently changing internal SystemUI
  flags through a call to setSystemUiVisibility().  These flags are only
  set in the individual SystemUI components and can be updated in WMS
  directly.

Bug: 29875297
Change-Id: I5ea238c8fb16a0eccd6e993d95a912acb359cee6
diff --git a/bridge/src/android/view/IWindowManagerImpl.java b/bridge/src/android/view/IWindowManagerImpl.java
index 76522f9..0c3231b 100644
--- a/bridge/src/android/view/IWindowManagerImpl.java
+++ b/bridge/src/android/view/IWindowManagerImpl.java
@@ -460,6 +460,16 @@
     }
 
     @Override
+    public void setRecentsVisibility(boolean visible) {
+        // TODO Auto-generated method stub
+    }
+
+    @Override
+    public void setTvPipVisibility(boolean visible) {
+        // TODO Auto-generated method stub
+    }
+
+    @Override
     public void stopAppFreezingScreen(IBinder arg0, boolean arg1) throws RemoteException {
         // TODO Auto-generated method stub
     }