Plugin element widget may be a RemoteFrameView.

third_party/WebKit/Source/core/html/HTMLPlugInElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLPlugInElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLPlugInElement.cpp b/third_party/WebKit/Source/core/html/HTMLPlugInElement.cpp
index 993d2f6cbe477df8b8526b5b5fae4e7e248d282f..8e7a02ac3da3ccb566d503c65eb6edb323e09406 100644
--- a/third_party/WebKit/Source/core/html/HTMLPlugInElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLPlugInElement.cpp
@@ -86,16 +86,14 @@ void HTMLPlugInElement::setPersistedPluginWidget(Widget* widget)
 {
     if (m_persistedPluginWidget == widget)
         return;
-#if ENABLE(OILPAN)
     if (m_persistedPluginWidget) {
         if (m_persistedPluginWidget->isPluginView()) {
             m_persistedPluginWidget->hide();
             m_persistedPluginWidget->dispose();
         } else {
-            ASSERT(m_persistedPluginWidget->isFrameView());
+            ASSERT(m_persistedPluginWidget->isFrameView() || m_persistedPluginWidget->isRemoteFrameView());
         }
     }
-#endif
     m_persistedPluginWidget = widget;
 }