Do cookie checks in NetworkDelegate instead of the URLRequest::Delegate.

net/proxy/network_delegate_error_observer_unittest.cc

Index: net/proxy/network_delegate_error_observer_unittest.cc
diff --git a/net/proxy/network_delegate_error_observer_unittest.cc b/net/proxy/network_delegate_error_observer_unittest.cc
index b64e9bf97e965da8bca38de6c8ff4b775af72877..f4b4ba75b15248389d2ed8812d2146d9aaa08fbc 100644
--- a/net/proxy/network_delegate_error_observer_unittest.cc
+++ b/net/proxy/network_delegate_error_observer_unittest.cc
@@ -63,6 +63,17 @@ class TestNetworkDelegate : public net::NetworkDelegate {
       AuthCredentials* credentials) OVERRIDE {
     return AUTH_REQUIRED_RESPONSE_NO_ACTION;
   }
+  virtual bool CanGetCookies(
+      const URLRequest* request,
+      const CookieList& cookie_list) OVERRIDE {
+    return true;
+  }
+  virtual bool CanSetCookie(
+      const URLRequest* request,
+      const std::string& cookie_line,
+      CookieOptions* options) OVERRIDE {
+    return true;
+  }
 
   bool got_pac_error_;
 };