Run safebrowsing_service_test through the net testserver code.

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 a1a1bc876817d5245b6e5046c2d31baf72fe0a03..4768f365ec508f849b692eb65c79db229ae33917 100644
--- a/net/test/local_test_server.cc
+++ b/net/test/local_test_server.cc
@@ -94,13 +94,19 @@ bool LocalTestServer::GetTestServerDirectory(FilePath* directory) {
   return true;
 }
 
+bool LocalTestServer::GetTestServerPath(FilePath* testserver_path) const {
+  if (!GetTestServerDirectory(testserver_path))
+    return false;
+  *testserver_path = testserver_path->Append(FILE_PATH_LITERAL(
+      "testserver.py"));
+  return true;
+}
+
 bool LocalTestServer::Start() {
   // Get path to Python server script.
   FilePath testserver_path;
-  if (!GetTestServerDirectory(&testserver_path))
+  if (!GetTestServerPath(&testserver_path))
     return false;
-  testserver_path =
-      testserver_path.Append(FILE_PATH_LITERAL("testserver.py"));
 
   if (!SetPythonPath())
     return false;
@@ -159,8 +165,12 @@ bool LocalTestServer::Init(const FilePath& document_root) {
   return true;
 }
 
+bool LocalTestServer::SetPythonPath() const {
+  return SetPythonPathStatic();
+}
+
 // static
-bool LocalTestServer::SetPythonPath() {
+bool LocalTestServer::SetPythonPathStatic() {
   FilePath third_party_dir;
   if (!PathService::Get(base::DIR_SOURCE_ROOT, &third_party_dir)) {
     LOG(ERROR) << "Failed to get DIR_SOURCE_ROOT";
@@ -255,4 +265,13 @@ bool LocalTestServer::AddCommandLineArguments(CommandLine* command_line) const {
   return true;
 }
 
+void LocalTestServer::AddPythonArguments(const FilePath& testserver_path,
+                                         CommandLine* command_line) const {
+  // Make python stdout and stderr unbuffered, to prevent incomplete stderr on
+  // win bots, and also fix mixed up ordering of stdout and stderr.
+  command_line->AppendSwitch("-u");
+
+  command_line->AppendArgPath(testserver_path);
+}
+
 }  // namespace net