commit b10330d5191ebb50c397d8f3de50fda44698337a
author Andrii Kulian <akulian@google.com> Fri Sep 16 13:51:46 2016 -0700
committer Andrii Kulian <akulian@google.com> Mon Sep 19 11:34:22 2016 -0700
tree 42e8d9a52ebbd5bcec0b20aea81776ea9eab1fc7
parent fcdcf7f636ada244a635328e25fdc03959468c8e

Use Configuration#unset() instead of #setToDefaults() for clearing

Now Configuration.EMPTY has fontScale set to 0 instead of default 1.
To get config equal to empty unset() method should be used.
Because of incorrect usage of setToDefaults() there was a black flash
when exiting split-screen because override config was no completely
empty. Fixing that also allows us to simplify things a bit when checking
if override config changed.

Bug: 31533188
Test: manual - long-press overview to enter split-screen, repeat to exit.
Change-Id: I6bf7994ff88ebb42db2e2357b762857710432a58

services/core/java/com/android/server/wm/DockedStackDividerController.java

diff --git a/services/core/java/com/android/server/wm/DockedStackDividerController.java b/services/core/java/com/android/server/wm/DockedStackDividerController.java
index 573eca1..0907b85 100644
--- a/services/core/java/com/android/server/wm/DockedStackDividerController.java
+++ b/services/core/java/com/android/server/wm/DockedStackDividerController.java
@@ -203,7 +203,7 @@
                     ? mDisplayContent.mBaseDisplayWidth
                     : mDisplayContent.mBaseDisplayHeight;
             mService.mPolicy.getStableInsetsLw(rotation, dw, dh, mTmpRect);
-            config.setToDefaults();
+            config.unset();
             config.orientation = (dw <= dh) ? ORIENTATION_PORTRAIT : ORIENTATION_LANDSCAPE;
             config.screenWidthDp = (int)
                     (mService.mPolicy.getConfigDisplayWidth(dw, dh, rotation, baseConfig.uiMode) /