Add support for RIP relative addresses on x86_64.

courgette/encode_decode_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "courgette/base_test_unittest.h"
 #include "courgette/courgette.h"
 #include "courgette/streams.h"
 
 class EncodeDecodeTest : public BaseTest {
  public:
@@ skipping 57 matching lines @@
   DeleteEncodedProgram(encoded2);
 }
 
 TEST_F(EncodeDecodeTest, PE) {
   std::string file = FileContents("setup1.exe");
   TestAssembleToStreamDisassemble(file, 971850);
 }
 
 TEST_F(EncodeDecodeTest, PE64) {
   std::string file = FileContents("chrome64_1.exe");
-  TestAssembleToStreamDisassemble(file, 814709);
+  TestAssembleToStreamDisassemble(file, 819306);
 }
 
 TEST_F(EncodeDecodeTest, Elf_Small) {
   std::string file = FileContents("elf-32-1");
   TestAssembleToStreamDisassemble(file, 135988);
 }