Make ScriptStreamer and dependents Oilpan friendly.

Source/bindings/core/v8/ScriptSourceCode.cpp

Index: Source/bindings/core/v8/ScriptSourceCode.cpp
diff --git a/Source/bindings/core/v8/ScriptSourceCode.cpp b/Source/bindings/core/v8/ScriptSourceCode.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..5bacc44a08190355a7c3279be4fd30eda70a68fb
--- /dev/null
+++ b/Source/bindings/core/v8/ScriptSourceCode.cpp
@@ -0,0 +1,60 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "bindings/core/v8/ScriptSourceCode.h"
+
+namespace blink {
+
+ScriptSourceCode::ScriptSourceCode()
+    : m_resource(0)
+    , m_startPosition(TextPosition::minimumPosition())
+{
+}
+
+ScriptSourceCode::ScriptSourceCode(const String& source, const KURL& url, const TextPosition& startPosition)
+    : m_source(source)
+    , m_resource(0)
+    , m_url(url)
+    , m_startPosition(startPosition)
+{
+    if (!m_url.isEmpty())
+        m_url.removeFragmentIdentifier();
+}
+
+ScriptSourceCode::ScriptSourceCode(ScriptResource* resource)
+    : m_source(resource->script())
+    , m_resource(resource)
+    , m_startPosition(TextPosition::minimumPosition())
+{
+}
+
+ScriptSourceCode::ScriptSourceCode(PassRefPtrWillBeRawPtr<ScriptStreamer> streamer, ScriptResource* resource)
+    : m_source(resource->script())
+    , m_resource(resource)
+    , m_streamer(streamer)
+    , m_startPosition(TextPosition::minimumPosition())
+{
+}
+
+ScriptSourceCode::~ScriptSourceCode()
+{
+}
+
+void ScriptSourceCode::trace(Visitor* visitor)
+{
+    visitor->trace(m_streamer);
+}
+
+const KURL& ScriptSourceCode::url() const
+{
+    if (m_url.isEmpty() && m_resource) {
+        m_url = m_resource->response().url();
+        if (!m_url.isEmpty())
+            m_url.removeFragmentIdentifier();
+    }
+    return m_url;
+}
+
+} // namespace blink