add traces to aid on investigation

Summary: There is a QE setting shadows that is seeing regression performances - so we want to understand if this is the bit where the bigger source of the regression comes from.

Differential Revision: D65541311

fbshipit-source-id: 592e78384f4f641ca26b29c8e78382bd10427312

litho-widget/src/main/java/com/facebook/litho/widget/TextDrawable.java

@@ -46,6 +46,7 @@
 import androidx.annotation.RequiresApi;
 import androidx.annotation.VisibleForTesting;
 import com.facebook.fbui.textlayoutbuilder.util.LayoutMeasureUtil;
+import com.facebook.litho.ComponentsSystrace;
 import com.facebook.litho.TextContent;
 import com.facebook.litho.Touchable;
 import com.facebook.litho.utils.VersionedAndroidApis;
@@ -138,6 +139,10 @@ public void draw(Canvas canvas) {
    */
   @RequiresApi(Build.VERSION_CODES.Q)
   private void maybeDrawOutline(Canvas canvas) {
+    boolean isTracing = ComponentsSystrace.isTracing();
+    if (isTracing) {
+      ComponentsSystrace.beginSection("TextDrawable.maybeDrawOutline");
+    }
     if (mOutlineWidth > 0f) {
       Paint p = mLayout.getPaint();
       int savedColor = p.getColor();
@@ -155,6 +160,10 @@ private void maybeDrawOutline(Canvas canvas) {
       p.setColor(savedColor);
       p.setStrokeJoin(savedJoin);
     }
+
+    if (isTracing) {
+      ComponentsSystrace.endSection();
+    }
   }
 
   private String getDebugInfo() {