Merge "Still save config on client side when not reporting to activity."
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index f3539ff..3962abd 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -4399,10 +4399,14 @@
             // onConfigurationChanged
             int diff = activity.mCurrentConfig.diff(config);
             if (diff != 0) {
-                // If this activity doesn't handle any of the config changes
-                // then don't bother calling onConfigurationChanged as we're
-                // going to destroy it.
-                if ((~activity.mActivityInfo.getRealConfigChanged() & diff) == 0) {
+                // If this activity doesn't handle any of the config changes then don't bother
+                // calling onConfigurationChanged as we're going to destroy it.
+                // Except in the case where the configuration changed on the activity manager side,
+                // but wasn't big enough to cause a resource change so the activity wasn't destroyed.
+                // In this case we still want to change the configuration of the activity but not
+                // report it to the app.
+                if ((~activity.mActivityInfo.getRealConfigChanged() & diff) == 0
+                        || !reportToActivity) {
                     shouldChangeConfig = true;
                 }
             }