Track whether an element was inserted via document.write

third_party/WebKit/Source/core/dom/ScriptLoader.h

Index: third_party/WebKit/Source/core/dom/ScriptLoader.h
diff --git a/third_party/WebKit/Source/core/dom/ScriptLoader.h b/third_party/WebKit/Source/core/dom/ScriptLoader.h
index 99d47c3a112fe95911e5ffa487289412100a094f..e69216adb64d25d0a6051337e2ecef9d88ce1b53 100644
--- a/third_party/WebKit/Source/core/dom/ScriptLoader.h
+++ b/third_party/WebKit/Source/core/dom/ScriptLoader.h
@@ -39,9 +39,9 @@ class LocalFrame;
 class CORE_EXPORT ScriptLoader : public NoBaseWillBeGarbageCollectedFinalized<ScriptLoader>, public ScriptResourceClient {
     USING_FAST_MALLOC_WILL_BE_REMOVED(ScriptLoader);
 public:
-    static PassOwnPtrWillBeRawPtr<ScriptLoader> create(Element* element, bool createdByParser, bool isEvaluated)
+    static PassOwnPtrWillBeRawPtr<ScriptLoader> create(Element* element, bool createdByParser, bool isEvaluated, bool createdDuringDocumentWrite = false)
     {
-        return adoptPtrWillBeNoop(new ScriptLoader(element, createdByParser, isEvaluated));
+        return adoptPtrWillBeNoop(new ScriptLoader(element, createdByParser, isEvaluated, createdDuringDocumentWrite));
     }
 
     ~ScriptLoader() override;
@@ -86,8 +86,10 @@ public:
     // Clears the connection to the PendingScript (and Element and Resource).
     void detach();
 
+    bool createdDuringDocumentWrite() { return m_createdDuringDocumentWrite; }

[kouhei (in TOK), 2016/03/18 02:24:26]

Optional Nit: wasCreatedDuringDocumentWrite()? Blink bool getters were expected
to start with {is,was,has,have} but not sure after Chromium repo merge...

[Charlie Harrison, 2016/03/18 14:10:46]

Done.

+
 protected:
-    ScriptLoader(Element*, bool createdByParser, bool isEvaluated);
+    ScriptLoader(Element*, bool createdByParser, bool isEvaluated, bool createdDuringDocumentWrite);
 
 private:
     bool ignoresLoadRequest() const;
@@ -117,6 +119,7 @@ private:
     bool m_willExecuteInOrder : 1;
     bool m_willExecuteWhenDocumentFinishedParsing : 1;
     bool m_forceAsync : 1;
+    const bool m_createdDuringDocumentWrite : 1;
 
     OwnPtrWillBeMember<PendingScript> m_pendingScript;
 };