Move ExtensionEventRouter and related into extensions namespace

chrome/browser/profiles/profile.h

Index: chrome/browser/profiles/profile.h
diff --git a/chrome/browser/profiles/profile.h b/chrome/browser/profiles/profile.h
index e9c1f92304ee2ca9c3ef96be58621103e6270d8e..9b3e9d9b884dfa9721db0b5c9741e3aa20e8a574 100644
--- a/chrome/browser/profiles/profile.h
+++ b/chrome/browser/profiles/profile.h
@@ -19,7 +19,6 @@
 class BookmarkModel;
 class ChromeAppCacheService;
 class ChromeURLDataManager;
-class ExtensionEventRouter;
 class ExtensionProcessManager;
 class ExtensionService;
 class ExtensionSpecialStoragePolicy;
@@ -57,6 +56,7 @@ class WebUI;
 }
 
 namespace extensions {
+class EventRouter;
 class UserScriptMaster;
 }
 
@@ -210,7 +210,7 @@ class Profile : public content::BrowserContext {
   // DEPRECATED. Instead, use ExtensionSystem::event_router().
   // Accessor. The instance is created at startup.
   // TODO(yoz): remove this accessor (bug 104095).
-  virtual ExtensionEventRouter* GetExtensionEventRouter() = 0;
+  virtual extensions::EventRouter* GetExtensionEventRouter() = 0;
 
   // Accessor. The instance is created upon first access.
   virtual ExtensionSpecialStoragePolicy*