Make the TestServer use an absolute document root path.

net/test/local_test_server.cc

Index: net/test/local_test_server.cc
diff --git a/net/test/local_test_server.cc b/net/test/local_test_server.cc
index e2d334f9557e2c5e5b6e0e237c44e7234bf1510c..73236b4c33ff105d363ed29fe5f3c80834cfe645 100644
--- a/net/test/local_test_server.cc
+++ b/net/test/local_test_server.cc
@@ -140,7 +140,7 @@ bool LocalTestServer::Stop() {
 }
 
 bool LocalTestServer::Init(const base::FilePath& document_root) {
-  if (document_root.IsAbsolute())
+  if (!document_root.IsAbsolute())
     return false;
 
   // At this point, the port that the test server will listen on is unknown.
@@ -153,7 +153,7 @@ bool LocalTestServer::Init(const base::FilePath& document_root) {
   base::FilePath src_dir;
   if (!PathService::Get(base::DIR_SOURCE_ROOT, &src_dir))
     return false;
-  SetResourcePath(src_dir.Append(document_root),
+  SetResourcePath(document_root,
                   src_dir.AppendASCII("net")
                          .AppendASCII("data")
                          .AppendASCII("ssl")