Introduce PendingScript::startStreamingIfPossible()

third_party/WebKit/Source/core/dom/PendingScript.cpp

Index: third_party/WebKit/Source/core/dom/PendingScript.cpp
diff --git a/third_party/WebKit/Source/core/dom/PendingScript.cpp b/third_party/WebKit/Source/core/dom/PendingScript.cpp
index 4771069d7d7d2441578ca73f93d1c3db92347f33..049af533de121697d441094207a27a7c9f46b217 100644
--- a/third_party/WebKit/Source/core/dom/PendingScript.cpp
+++ b/third_party/WebKit/Source/core/dom/PendingScript.cpp
@@ -26,7 +26,12 @@
 #include "core/dom/PendingScript.h"
 
 #include "bindings/core/v8/ScriptSourceCode.h"
+#include "bindings/core/v8/ScriptState.h"
+#include "bindings/core/v8/V8Binding.h"
+#include "core/dom/Document.h"
 #include "core/dom/ScriptElementBase.h"
+#include "core/dom/TaskRunnerHelper.h"
+#include "core/frame/LocalFrame.h"
 #include "core/frame/SubresourceIntegrity.h"
 #include "platform/SharedBuffer.h"
 #include "wtf/CurrentTime.h"
@@ -273,4 +278,19 @@ void PendingScript::onPurgeMemory() {
   m_streamer = nullptr;
 }
 
+void PendingScript::startStreamingIfPossible(
+    Document* document,
+    ScriptStreamer::Type streamerType) {
+  if (!document->frame())
+    return;
+
+  ScriptState* scriptState = toScriptStateForMainWorld(document->frame());
+  if (!scriptState)
+    return;
+
+  ScriptStreamer::startStreaming(
+      this, streamerType, document->frame()->settings(), scriptState,
+      TaskRunnerHelper::get(TaskType::Networking, document));
+}
+
 }  // namespace blink