Only attempt to clear measures if we created the measure (#9451)

This fixes an issue where if we decided not to create a measurement we would clear ALL measurements from the performance entry buffer due to passing `undefined` as the entry name.
facebook · Apr 18, 2017 · f6c4fe6 · f6c4fe6
1 parent ac9d698
commit f6c4fe6
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/renderers/shared/ReactDebugTool.js b/src/renderers/shared/ReactDebugTool.js
@@ -305,7 +305,9 @@ if (__DEV__) {
     }
 
     performance.clearMarks(markName);
-    performance.clearMeasures(measurementName);
+    if (measurementName) {
+      performance.clearMeasures(measurementName);
+    }
   };
 
   ReactDebugTool = {