net: Add namespace net to the remaining files under url_request directory.

chrome_frame/external_tab.h

Index: chrome_frame/external_tab.h
diff --git a/chrome_frame/external_tab.h b/chrome_frame/external_tab.h
index 4fbb5d336691ae17efee7c1aa0481452c4180435..ac7aff308a2175fb6ff42af5501b004dec43989a 100644
--- a/chrome_frame/external_tab.h
+++ b/chrome_frame/external_tab.h
@@ -22,14 +22,15 @@
 
 class Task;
 class CancelableTask;
+
 namespace base {
-  class TimeDelta;
-  class WaitableEvent;
+class TimeDelta;
+class WaitableEvent;
 }
 
 namespace IPC {
-  struct NavigationInfo;
-  struct MiniContextMenuParams;
+struct NavigationInfo;
+struct MiniContextMenuParams;
 }
 
 // This is the delegate/callback interface that has to be implemented
@@ -150,7 +151,7 @@ class ExternalTabProxy : public CWindowImpl<ExternalTabProxy>,
   virtual void OnNetwork_Start(
       int request_id, const AutomationURLRequest& request_info);
   virtual void OnNetwork_Read(int request_id, int bytes_to_read);
-  virtual void OnNetwork_End(int request_id, const URLRequestStatus& s);
+  virtual void OnNetwork_End(int request_id, const net::URLRequestStatus& s);
   virtual void OnNetwork_DownloadInHost(int request_id);
   virtual void OnGetCookies(const GURL& url, int cookie_id);
   virtual void OnSetCookie(const GURL& url, const std::string& cookie);