Make the TestServer use an absolute document root path.

chrome/browser/extensions/api/socket/socket_apitest.cc

Index: chrome/browser/extensions/api/socket/socket_apitest.cc
diff --git a/chrome/browser/extensions/api/socket/socket_apitest.cc b/chrome/browser/extensions/api/socket/socket_apitest.cc
index 73e62fa7ae966f3b0e5d2ed3ac19096425685fb3..46ea3c9743f8965cb075ae27301cc9cdecf345ac 100644
--- a/chrome/browser/extensions/api/socket/socket_apitest.cc
+++ b/chrome/browser/extensions/api/socket/socket_apitest.cc
@@ -124,7 +124,8 @@ IN_PROC_BROWSER_TEST_F(SocketApiTest, SocketUDPExtension) {
   scoped_ptr<net::TestServer> test_server(
       new net::TestServer(net::TestServer::TYPE_UDP_ECHO,
                           net::TestServer::kLocalhost,
-                          base::FilePath(FILE_PATH_LITERAL("net/data"))));
+                          net::TestServer::GetSourceRelativePath(
+                              base::FilePath(FILE_PATH_LITERAL("net/data")))));
   EXPECT_TRUE(test_server->Start());
 
   net::HostPortPair host_port_pair = test_server->host_port_pair();
@@ -151,7 +152,8 @@ IN_PROC_BROWSER_TEST_F(SocketApiTest, SocketTCPExtension) {
   scoped_ptr<net::TestServer> test_server(
       new net::TestServer(net::TestServer::TYPE_TCP_ECHO,
                           net::TestServer::kLocalhost,
-                          base::FilePath(FILE_PATH_LITERAL("net/data"))));
+                          net::TestServer::GetSourceRelativePath(
+                              base::FilePath(FILE_PATH_LITERAL("net/data")))));
   EXPECT_TRUE(test_server->Start());
 
   net::HostPortPair host_port_pair = test_server->host_port_pair();