Fixes the issue Launcher state propagation is slower than onDeferredResume.

There's currently a bug prevents Launcher release drag lock for two step
widgets. Supposedly, onDeferredResume should release the drag lock; However,
in 3-button navigation mode, the transition from Overview -> Normal is
triggered in Launcher#onNewIntent, which happens after onDeferredResume.

This issue is not reproducible with gesture navigation because its
transition from Overview -> Normal is handled in NavBarToHomeTouchController

Test: manual verified with following steps
1. Enable 3-button navigation
2. Long press in WorkSpace -> Widgets
3. Drag Settings Widget to WorkSpace
4. When the config activity is shown, press "recents" button to see Overview
5. press "home" button to go back to workspace
6. repeat 2 and 3, verify the widget can be dragged
Bug: 149659788

Change-Id: I396ffa8a7db44bf3872a10de4208340a99a7efe8

quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java

@@ -157,6 +157,12 @@ public abstract class BaseQuickstepLauncher extends Launcher
     @Override
     protected void onDeferredResumed() {
         super.onDeferredResumed();
+        handlePendingActivityRequest();
+    }
+
+    @Override
+    protected void handlePendingActivityRequest() {
+        super.handlePendingActivityRequest();
         if (mPendingActivityRequestCode != -1 && isInState(NORMAL)) {
             // Remove any active ProxyActivityStarter task and send RESULT_CANCELED to Launcher.
             onActivityResult(mPendingActivityRequestCode, RESULT_CANCELED, null);

src/com/android/launcher3/Launcher.java

@@ -923,6 +923,7 @@ public class Launcher extends StatefulActivity<LauncherState> implements Launche
         DiscoveryBounce.showForHomeIfNeeded(this);
     }
 
+    protected void handlePendingActivityRequest() { }
 
     private void logStopAndResume(int command) {
         int pageIndex = mWorkspace.isOverlayShown() ? -1 : mWorkspace.getCurrentPage();
@@ -1423,7 +1424,8 @@ public class Launcher extends StatefulActivity<LauncherState> implements Launche
                 if (!isInState(NORMAL)) {
                     // Only change state, if not already the same. This prevents cancelling any
                     // animations running as part of resume
-                    mStateManager.goToState(NORMAL);
+                    mStateManager.goToState(NORMAL, mStateManager.shouldAnimateStateChange(),
+                            this::handlePendingActivityRequest);
                 }
 
                 // Reset the apps view