Fix cluster reporting from shaper.

Bug: skia:8420
Change-Id: I7eea8c6b3af2153a1ac1189782fc6cbaaf9ee5c6
Reviewed-on: https://skia-review.googlesource.com/c/190821
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>
diff --git a/samplecode/SampleTextBox.cpp b/samplecode/SampleTextBox.cpp
index 3b67af4..8c1c66e 100644
--- a/samplecode/SampleTextBox.cpp
+++ b/samplecode/SampleTextBox.cpp
@@ -79,7 +79,7 @@
         paint.setColor(fg);
 
         for (int i = 9; i < 24; i += 2) {
-            SkTextBlobBuilderRunHandler builder;
+            SkTextBlobBuilderRunHandler builder(gText);
             SkFont font(nullptr, SkIntToScalar(i));
             font.setEdging(SkFont::Edging::kSubpixelAntiAlias);