Get rid of the RenderViewType concept in content, since it was only used by Chrome. Store the enum…

chrome/browser/extensions/extension_message_handler.cc

Index: chrome/browser/extensions/extension_message_handler.cc
===================================================================
--- chrome/browser/extensions/extension_message_handler.cc	(revision 138369)
+++ chrome/browser/extensions/extension_message_handler.cc	(working copy)
@@ -7,11 +7,14 @@
 #include "chrome/browser/extensions/extension_message_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/view_type_utils.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_view_host_delegate.h"
+#include "content/public/browser/web_contents.h"
 
+using content::WebContents;
+
 ExtensionMessageHandler::ExtensionMessageHandler(
     content::RenderViewHost* render_view_host)
     : content::RenderViewHostObserver(render_view_host) {
@@ -31,8 +34,10 @@
 }
 
 void ExtensionMessageHandler::RenderViewHostInitialized() {
+  WebContents* web_contents =
+      WebContents::FromRenderViewHost(render_view_host());
   Send(new ExtensionMsg_NotifyRenderViewType(
-      routing_id(), render_view_host()->GetDelegate()->GetRenderViewType()));
+      routing_id(), chrome::GetViewType(web_contents)));
 }
 
 void ExtensionMessageHandler::OnPostMessage(int port_id,