Close task menu scrim when pressing home button

- Generally close all floating view when starting home from Recents

Bug: 193432925
Test: with 3 button, open task menu, then press home
Change-Id: Ic99c50333c797f222fc8e682fd0f3fcc4d641d47

quickstep/src/com/android/quickstep/views/LauncherRecentsView.java

@@ -32,6 +32,7 @@ import android.view.Surface;
 
 import androidx.annotation.Nullable;
 
+import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.statehandlers.DepthController;
@@ -70,6 +71,7 @@ public class LauncherRecentsView extends RecentsView<BaseQuickstepLauncher, Laun
     @Override
     public void startHome() {
         mActivity.getStateManager().goToState(NORMAL);
+        AbstractFloatingView.closeAllOpenViews(mActivity, mActivity.isStarted());
     }
 
     @Override