Call noteStateNotSaved on child fragment managers.

Bug 36740474

When onNewIntent() is called, it calls noteStateNotSaved on
the FragmentManager. It wasn't propagating that to child
FragmentManagers. This CL properly propagates the
noteStateNotSaved().

Test: I7cf360a4ed82ee34797896dc110477731c8206c0

Change-Id: Icfcbc385ef68657145b05cb59d5b2a70fe020992

core/java/android/app/Fragment.java

@@ -2608,6 +2608,12 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
         }
     }
 
+    void noteStateNotSaved() {
+        if (mChildFragmentManager != null) {
+            mChildFragmentManager.noteStateNotSaved();
+        }
+    }
+
     @Deprecated
     void performMultiWindowModeChanged(boolean isInMultiWindowMode) {
         onMultiWindowModeChanged(isInMultiWindowMode);

core/java/android/app/FragmentManager.java

@@ -2893,8 +2893,15 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
 
     public void noteStateNotSaved() {
         mStateSaved = false;
+        final int addedCount = mAdded == null ? 0 : mAdded.size();
+        for (int i = 0; i < addedCount; i++) {
+            Fragment fragment = mAdded.get(i);
+            if (fragment != null) {
+                fragment.noteStateNotSaved();
+            }
+        }
     }
-    
+
     public void dispatchCreate() {
         mStateSaved = false;
         dispatchMoveToState(Fragment.CREATED);