Fix layering violation in content\browser\renderer_host. That directory shouldn't be including web_…

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
===================================================================
--- content/browser/browser_plugin/browser_plugin_guest.h	(revision 184684)
+++ content/browser/browser_plugin/browser_plugin_guest.h	(working copy)
@@ -58,6 +58,7 @@
 class BrowserPluginHostFactory;
 class BrowserPluginEmbedder;
 class RenderProcessHost;
+class RenderWidgetHostView;
 
 // A browser plugin guest provides functionality for WebContents to operate in
 // the guest role and implements guest specific overrides for ViewHostMsg_*
@@ -97,6 +98,8 @@
     return embedder_web_contents_;
   }
 
+  RenderWidgetHostView* GetEmbedderRenderWidgetHostView();
+
   bool focused() const { return focused_; }
   bool visible() const { return guest_visible_; }
   void clear_damage_buffer() { damage_buffer_.reset(); }