Measure text autosizing in the wild

third_party/WebKit/Source/core/layout/TextAutosizer.cpp

Index: third_party/WebKit/Source/core/layout/TextAutosizer.cpp
diff --git a/third_party/WebKit/Source/core/layout/TextAutosizer.cpp b/third_party/WebKit/Source/core/layout/TextAutosizer.cpp
index 9c984a49eab98cedf49a9ec62d0e6394f4b5366c..9476370b220ed0cbf307a3c42baea9640cf4466c 100644
--- a/third_party/WebKit/Source/core/layout/TextAutosizer.cpp
+++ b/third_party/WebKit/Source/core/layout/TextAutosizer.cpp
@@ -485,6 +485,9 @@ float TextAutosizer::inflate(LayoutObject* parent, SubtreeLayoutScope* layouter,
         }
     }
 
+    if (m_pageInfo.m_hasAutosized)
+        UseCounter::count(*m_document, UseCounter::TextAutosizing);
+
     return multiplier;
 }