Browser plugin: Implement loadRedirect event.

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
diff --git a/content/browser/browser_plugin/browser_plugin_guest.h b/content/browser/browser_plugin/browser_plugin_guest.h
index 2a65623c5f19bd2c3c526c4177c6baabfbd4d045..0b2db0e77f5f5a4c86f267454af8b51ffb4489a1 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.h
+++ b/content/browser/browser_plugin/browser_plugin_guest.h
@@ -34,6 +34,8 @@
 #include "base/compiler_specific.h"
 #include "base/id_map.h"
 #include "base/time.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "ui/gfx/rect.h"
@@ -57,7 +59,8 @@ class RenderProcessHost;
 // messages.
 //
 // BrowserPluginEmbedder is responsible for creating and destroying a guest.
-class CONTENT_EXPORT BrowserPluginGuest : public WebContentsDelegate,
+class CONTENT_EXPORT BrowserPluginGuest : public NotificationObserver,
+                                          public WebContentsDelegate,
                                           public WebContentsObserver {
  public:
   virtual ~BrowserPluginGuest();
@@ -81,6 +84,11 @@ class CONTENT_EXPORT BrowserPluginGuest : public WebContentsDelegate,
     embedder_render_process_host_ = render_process_host;
   }
 
+  // NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) OVERRIDE;
+
   // WebContentsObserver implementation.
   virtual void DidStartProvisionalLoadForFrame(
       int64 frame_id,
@@ -180,9 +188,15 @@ class CONTENT_EXPORT BrowserPluginGuest : public WebContentsDelegate,
   // since we want to intercept certain messages for testing.
   virtual void SendMessageToEmbedder(IPC::Message* msg);
 
+  // Called when a redirect notification occurs.
+  void LoadRedirect(const GURL& old_url,
+                    const GURL& new_url,
+                    bool is_top_level);
+
   // Static factory instance (always NULL for non-test).
   static content::BrowserPluginHostFactory* factory_;
 
+  NotificationRegistrar notification_registrar_;
   RenderProcessHost* embedder_render_process_host_;
   // An identifier that uniquely identifies a browser plugin guest within an
   // embedder.