Add URLRequest unit tests for HPKP violation reports

net/test/spawned_test_server/base_test_server.h

Index: net/test/spawned_test_server/base_test_server.h
diff --git a/net/test/spawned_test_server/base_test_server.h b/net/test/spawned_test_server/base_test_server.h
index b72e5d3e05a5ab4aa427e85ea345f93fea3db5b6..9eda67a29f693bf7cadd4a174be726144047c993 100644
--- a/net/test/spawned_test_server/base_test_server.h
+++ b/net/test/spawned_test_server/base_test_server.h
@@ -11,6 +11,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
+#include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/host_port_pair.h"
 #include "net/ssl/ssl_client_cert_type.h"
@@ -25,6 +26,7 @@ namespace net {
 
 class AddressList;
 class ScopedPortException;
+class X509Certificate;
 
 // The base class of Test server implementation.
 class BaseTestServer {
@@ -271,6 +273,9 @@ class BaseTestServer {
   // the duration of tests.
   bool LoadTestRootCert() const WARN_UNUSED_RESULT;
 
+  // Returns the certificate that the server is using.
+  scoped_refptr<X509Certificate> GetCertificate() const;
+
  protected:
   virtual ~BaseTestServer();
   Type type() const { return type_; }