Move ExtensionEventRouter and related into extensions namespace

chrome/browser/net/chrome_network_delegate.h

Index: chrome/browser/net/chrome_network_delegate.h
diff --git a/chrome/browser/net/chrome_network_delegate.h b/chrome/browser/net/chrome_network_delegate.h
index ac9fd68de071dafd9c5cc4661d656c98278a43a2..8cf28d642fb87a141a2062f62eaf24b30d493ef4 100644
--- a/chrome/browser/net/chrome_network_delegate.h
+++ b/chrome/browser/net/chrome_network_delegate.h
@@ -11,13 +11,16 @@
 #include "net/base/network_delegate.h"
 
 class CookieSettings;
-class ExtensionEventRouterForwarder;
 class ExtensionInfoMap;
 class PrefService;
 template<class T> class PrefMember;
 
 typedef PrefMember<bool> BooleanPrefMember;
 
+namespace extensions {
+class EventRouterForwarder;
+}
+
 namespace policy {
 class URLBlacklistManager;
 }
@@ -33,7 +36,7 @@ class ChromeNetworkDelegate : public net::NetworkDelegate {
   // shutdown. If |cookie_settings| is NULL, all cookies are enabled,
   // otherwise, the settings are enforced on all observed network requests.
   ChromeNetworkDelegate(
-      ExtensionEventRouterForwarder* event_router,
+      extensions::EventRouterForwarder* event_router,
       ExtensionInfoMap* extension_info_map,
       const policy::URLBlacklistManager* url_blacklist_manager,
       void* profile,
@@ -96,7 +99,7 @@ class ChromeNetworkDelegate : public net::NetworkDelegate {
       net::SocketStream* stream,
       const net::CompletionCallback& callback) OVERRIDE;
 
-  scoped_refptr<ExtensionEventRouterForwarder> event_router_;
+  scoped_refptr<extensions::EventRouterForwarder> event_router_;
   void* profile_;
   scoped_refptr<CookieSettings> cookie_settings_;