Introduce ClassicPendingScript::is_external_ explicitly

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

Index: third_party/WebKit/Source/core/dom/ClassicPendingScript.h
diff --git a/third_party/WebKit/Source/core/dom/ClassicPendingScript.h b/third_party/WebKit/Source/core/dom/ClassicPendingScript.h
index 1adb11714735f8fe6446aaf46e20a3be6a7c7238..0eabf9677c02d634142b2504ae1df57dea328160 100644
--- a/third_party/WebKit/Source/core/dom/ClassicPendingScript.h
+++ b/third_party/WebKit/Source/core/dom/ClassicPendingScript.h
@@ -50,7 +50,7 @@ class CORE_EXPORT ClassicPendingScript final
   ClassicScript* GetSource(const KURL& document_url,
                            bool& error_occurred) const override;
   bool IsReady() const override;
-  bool IsExternal() const override { return GetResource(); }
+  bool IsExternal() const override { return is_external_; }
   bool ErrorOccurred() const override;
   bool WasCanceled() const override;
   bool StartStreamingIfPossible(ScriptStreamer::Type, WTF::Closure) override;
@@ -96,6 +96,7 @@ class CORE_EXPORT ClassicPendingScript final
   // MemoryCoordinatorClient
   void OnPurgeMemory() override;
 
+  const bool is_external_;
   ReadyState ready_state_;
   bool integrity_failure_;