Merge "Less lazy child FragmentManager creation" into nyc-dev

am: 6437dac3d9

* commit '6437dac3d929297450d1ac937800eb35a5e51ef2':
  Less lazy child FragmentManager creation

Change-Id: I64e044e21b86f3015ab251780952c5b157b2b1e9

core/java/android/app/Fragment.java

@@ -1486,6 +1486,10 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
         final int version = context != null ? context.getApplicationInfo().targetSdkVersion : 0;
         if (version >= Build.VERSION_CODES.N) {
             restoreChildFragmentState(savedInstanceState, true);
+            if (mChildFragmentManager != null
+                    && !mChildFragmentManager.isStateAtLeast(Fragment.CREATED)) {
+                mChildFragmentManager.dispatchCreate();
+            }
         }
     }
 

core/java/android/app/FragmentManager.java

@@ -870,6 +870,10 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
         }
     }
 
+    boolean isStateAtLeast(int state) {
+        return mCurState >= state;
+    }
+
     void moveToState(Fragment f, int newState, int transit, int transitionStyle,
             boolean keepActive) {
         if (DEBUG && false) Log.v(TAG, "moveToState: " + f