net: Add namespace net to URLRequest and URLRequestJob classes.

net/url_request/url_request_filter.h

Index: net/url_request/url_request_filter.h
diff --git a/net/url_request/url_request_filter.h b/net/url_request/url_request_filter.h
index 17eb4bbe1c6cf4583c455abcbe8878e0e7434170..c3021cbce4a50e3c450c0b4150a1c0566477075e 100644
--- a/net/url_request/url_request_filter.h
+++ b/net/url_request/url_request_filter.h
@@ -27,7 +27,10 @@
 #include "net/url_request/url_request.h"
 
 class GURL;
+
+namespace net {
 class URLRequestJob;
+}  // namespace net
 
 class URLRequestFilter {
  public:
@@ -67,8 +70,8 @@ class URLRequestFilter {
   URLRequestFilter();
 
   // Helper method that looks up the request in the url_handler_map_.
-  URLRequestJob* FindRequestHandler(URLRequest* request,
-                                    const std::string& scheme);
+  net::URLRequestJob* FindRequestHandler(URLRequest* request,
+                                         const std::string& scheme);
 
   // Maps hostnames to factories.  Hostnames take priority over URLs.
   HostnameHandlerMap hostname_handler_map_;