This CL logs the metrics to see the impact of document.write script blocking feature. The metrics a…

third_party/WebKit/public/platform/WebLoadingBehaviorFlag.h

Index: third_party/WebKit/public/platform/WebLoadingBehaviorFlag.h
diff --git a/third_party/WebKit/public/platform/WebLoadingBehaviorFlag.h b/third_party/WebKit/public/platform/WebLoadingBehaviorFlag.h
index 1fb8e2ede8d1450c45d999a86f73df64aa22d18c..f6749aa17c821ceea0b95bcb0e8a0e8861dddfb0 100644
--- a/third_party/WebKit/public/platform/WebLoadingBehaviorFlag.h
+++ b/third_party/WebKit/public/platform/WebLoadingBehaviorFlag.h
@@ -15,6 +15,12 @@ namespace blink {
 enum WebLoadingBehaviorFlag {
     WebLoadingBehaviorNone = 0,
     WebLoadingBehaviorDocumentWriteEvaluator = 1 << 0,
+    // Indicates that the page has a synchronous, cross-origin document.written
+    // script.
+    WebLoadingBehaviorDocumentWriteBlock = 1 << 1,
+    // Indicates that the page is a reload and has a synchronous, cross-origin document.written
+    // script.
+    WebLoadingBehaviorDocumentWriteBlockReload = 1 << 2,
 };
 
 } // namespace blink