Make the TestServer use an absolute document root path.

chrome/browser/referrer_policy_browsertest.cc

Index: chrome/browser/referrer_policy_browsertest.cc
diff --git a/chrome/browser/referrer_policy_browsertest.cc b/chrome/browser/referrer_policy_browsertest.cc
index 83a32b41e78c0c85670088e1a7074acac9f5767c..3ea5cd7551092f8cfdd55ad1e3ab4107cd9e7a53 100644
--- a/chrome/browser/referrer_policy_browsertest.cc
+++ b/chrome/browser/referrer_policy_browsertest.cc
@@ -47,13 +47,15 @@ class ReferrerPolicyTest : public InProcessBrowserTest {
    virtual ~ReferrerPolicyTest() {}
 
    virtual void SetUp() OVERRIDE {
-     test_server_.reset(new net::TestServer(net::TestServer::TYPE_HTTP,
-                                            net::TestServer::kLocalhost,
-                                            base::FilePath(kDocRoot)));
+     test_server_.reset(new net::TestServer(
+         net::TestServer::TYPE_HTTP,
+         net::TestServer::kLocalhost,
+         net::TestServer::GetSourceRelativePath(base::FilePath(kDocRoot))));
      ASSERT_TRUE(test_server_->Start());
-     ssl_test_server_.reset(new net::TestServer(net::TestServer::TYPE_HTTPS,
-                                                net::TestServer::kLocalhost,
-                                                base::FilePath(kDocRoot)));
+     ssl_test_server_.reset(new net::TestServer(
+         net::TestServer::TYPE_HTTPS,
+         net::TestServer::kLocalhost,
+         net::TestServer::GetSourceRelativePath(base::FilePath(kDocRoot))));
      ASSERT_TRUE(ssl_test_server_->Start());
 
      InProcessBrowserTest::SetUp();