Moving all widget picker tests to instrumentation tests

Bug: 196825541
Test: Presubmit
Change-Id: I946f29baedb2e6b29044f8df1bc73b74e9999efe
diff --git a/src/com/android/launcher3/BaseActivity.java b/src/com/android/launcher3/BaseActivity.java
index 9778b61..ec96c6d 100644
--- a/src/com/android/launcher3/BaseActivity.java
+++ b/src/com/android/launcher3/BaseActivity.java
@@ -145,6 +145,7 @@
     /**
      * Returns {@link StatsLogManager} for user event logging.
      */
+    @Override
     public StatsLogManager getStatsLogManager() {
         if (mStatsLogManager == null) {
             mStatsLogManager = StatsLogManager.newInstance(this);