Make the TestServer use an absolute document root path.

net/test/remote_test_server.cc

Index: net/test/remote_test_server.cc
diff --git a/net/test/remote_test_server.cc b/net/test/remote_test_server.cc
index a4eab058005307543ba2c6eca476f0b6bae14be5..c883514641c294d3e97310dbd01b85293079ab14 100644
--- a/net/test/remote_test_server.cc
+++ b/net/test/remote_test_server.cc
@@ -161,7 +161,7 @@ base::FilePath RemoteTestServer::GetDocumentRoot() const {
 }
 
 bool RemoteTestServer::Init(const base::FilePath& document_root) {
-  if (document_root.IsAbsolute())
+  if (!document_root.IsAbsolute())
     return false;
 
   // Gets ports information used by test server spawner and Python test server.
@@ -194,9 +194,9 @@ bool RemoteTestServer::Init(const base::FilePath& document_root) {
   SetPort(test_server_port);
 
   SetResourcePath(document_root, base::FilePath().AppendASCII("net")
-                                           .AppendASCII("data")
-                                           .AppendASCII("ssl")
-                                           .AppendASCII("certificates"));
+                                                 .AppendASCII("data")
+                                                 .AppendASCII("ssl")
+                                                 .AppendASCII("certificates"));
   return true;
 }