second stage

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

Index: third_party/WebKit/Source/core/html/HTMLPlugInElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLPlugInElement.h b/third_party/WebKit/Source/core/html/HTMLPlugInElement.h
index b88a672e16ba1d65cfa2d9ce7bcbf30d45102f9a..8358ed69f9f1a6b065e92b274ab385ec9f8f5cad 100644
--- a/third_party/WebKit/Source/core/html/HTMLPlugInElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLPlugInElement.h
@@ -35,6 +35,7 @@ namespace blink {
 class HTMLImageLoader;
 class LayoutPart;
 class LayoutEmbeddedItem;
+class PluginClient;
 class Widget;
 
 enum PreferPlugInsForImagesOption {
@@ -145,6 +146,7 @@ class CORE_EXPORT HTMLPlugInElement : public HTMLFrameOwnerElement {
   virtual LayoutPart* existingLayoutPart() const = 0;
   virtual void updateWidgetInternal() = 0;
 
+  bool loadFrame(const KURL& resourceUrl);
   bool loadPlugin(const KURL&,
                   const String& mimeType,
                   const Vector<String>& paramNames,
@@ -179,6 +181,11 @@ class CORE_EXPORT HTMLPlugInElement : public HTMLFrameOwnerElement {
   // means the frame is active, we save off m_widget here while
   // the plugin is persisting but not being displayed.
   Member<Widget> m_persistedPluginWidget;
+
+  // The plugin might have a client instead of a plugin widget. This relates to
+  // the cases were the plugin is implemented using frames rather than plugin
+  // views and WebPlugins.
+  Member<PluginClient> m_pluginClient;
 };
 
 inline bool isHTMLPlugInElement(const HTMLElement& element) {