Make PPAPI test servers start in parallel

net/test/local_test_server.h

Index: net/test/local_test_server.h
diff --git a/net/test/local_test_server.h b/net/test/local_test_server.h
index 2b187396ac477b3f0c7e4091b7a460573d20a7f6..14b291d865c02b37d3baaf3cebc93fab87351c27 100644
--- a/net/test/local_test_server.h
+++ b/net/test/local_test_server.h
@@ -37,8 +37,29 @@ class LocalTestServer : public BaseTestServer {
 
   virtual ~LocalTestServer();
 
+  // Start the test server and block until it's ready. Returns true on success.
   bool Start() WARN_UNUSED_RESULT;
 
+  // Start the test server without blocking. Use this if you need multiple test
+  // servers (such as WebSockets and HTTP, or HTTP and HTTPS). You must call
+  // BlockUntilStarted on all servers your test requires before executing the
+  // test. For example:
+  //
+  //   // Start the servers in parallel.
+  //   ASSERT_TRUE(http_server.StartInBackground());
+  //   ASSERT_TRUE(websocket_server.StartInBackground());
+  //   // Wait for both servers to be ready.
+  //   ASSERT_TRUE(http_server.BlockUntilStarted());
+  //   ASSERT_TRUE(websocket_server.BlockUntilStarted());
+  //   RunMyTest();
+  //
+  // Returns true on success.
+  bool StartInBackground() WARN_UNUSED_RESULT;
+
+  // Block until ths test server is ready. Returns true on success. See
+  // StartInBackground() documentation for more information.
+  bool BlockUntilStarted() WARN_UNUSED_RESULT;
+
   // Stop the server started by Start().
   bool Stop();