Hide knowledge of webkit::ppapi::PluginDelegate from chrome. This is part of moving ppapi implement…

content/public/renderer/render_view.h

Index: content/public/renderer/render_view.h
===================================================================
--- content/public/renderer/render_view.h	(revision 212906)
+++ content/public/renderer/render_view.h	(working copy)
@@ -146,6 +146,11 @@
       const WebKit::WebURLRequest& request,
       WebKit::WebNavigationPolicy policy) = 0;
 
+  // Used by plugins that load data in this RenderView to update the loading
+  // notifications.
+  virtual void DidStartLoading() = 0;
+  virtual void DidStopLoading() = 0;
+
   // Notifies the renderer that a paint is to be generated for the size
   // passed in.
   virtual void Repaint(const gfx::Size& size) = 0;