Add debug logs for widget recommendation down scale calculation

Bug: 185508758
Test: None
Change-Id: I0b4789075bcc5ffc26f30dcd483f7c97bee9f410
diff --git a/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java b/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
index 90cd515..70127c5 100644
--- a/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
+++ b/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
@@ -28,6 +28,7 @@
 import android.os.Process;
 import android.os.UserHandle;
 import android.util.AttributeSet;
+import android.util.Log;
 import android.util.Pair;
 import android.util.SparseArray;
 import android.view.LayoutInflater;
@@ -461,6 +462,10 @@
         WidgetsRecommendationTableLayout table =
                 mSearchAndRecommendationViewHolder.mRecommendedWidgetsTable;
         if (recommendedWidgets.size() > 0) {
+            // TODO(b/185508758): Revert the following log after debugging.
+            if (getHeaderViewHeight() == 0) {
+                Log.d(TAG, "Header view height is 0 when inflating recommended widgets");
+            }
             float maxTableHeight =
                     (mLauncher.getDeviceProfile().heightPx - mTabsHeight - getHeaderViewHeight())
                             * RECOMMENDATION_TABLE_HEIGHT_RATIO;