Attemp handle back key when enable onBackInvoked callback.

Unlike normal activity, recents would receive key event from input
consumer instead of go throught ViewRootImpl, so when adapt to
predictive back API, recents should try to handle back key when receive
key event.

Flag: ACONFIG launcher.enable_predictive_back_gesture ENABLED
Bug: 333428882
Test: switch to 3-button mode, go to live tile, verify back key can
dismiss recents.

Change-Id: Ibe6d9b2475a0b89b12dc4b34251a2a92926b5a4e
diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index e75812a..2d2fb97 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -83,6 +83,7 @@
              android:configChanges="keyboard|keyboardHidden|mcc|mnc|navigation|orientation|screenSize|screenLayout|smallestScreenSize"
              android:resizeableActivity="true"
              android:resumeWhilePausing="true"
+             android:enableOnBackInvokedCallback="false"
              android:taskAffinity=""/>
 
         <!-- Content provider to settings search. The autority should be same as the packageName -->