Fix race initialising DevtoolsNetworkController

brightray/browser/net/devtools_network_controller_handle.h

@@ -0,0 +1,44 @@
+// Copyright (c) 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE-CHROMIUM file.
+
+#ifndef BROWSER_DEVTOOLS_NETWORK_CONTROLLER_HANDLE_H_
+#define BROWSER_DEVTOOLS_NETWORK_CONTROLLER_HANDLE_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+
+namespace brightray {
+
+class DevToolsNetworkConditions;
+class DevToolsNetworkController;
+
+// A handle to manage an IO-thread DevToolsNetworkController on the IO thread
+// while allowing SetNetworkState to be called from the UI thread.
+class DevToolsNetworkControllerHandle {
+ public:
+  DevToolsNetworkControllerHandle();
+  ~DevToolsNetworkControllerHandle();
+
+  // Called on the UI thread.
+  void SetNetworkState(const std::string& client_id,
+                       scoped_ptr<DevToolsNetworkConditions> conditions);
+
+  // Called on the IO thread.
+  DevToolsNetworkController* GetController();
+
+ private:
+  void LazyInitialize();
+  void SetNetworkStateOnIO(const std::string& client_id,
+                           scoped_ptr<DevToolsNetworkConditions> conditions);
+
+  scoped_ptr<DevToolsNetworkController> controller_;
+
+  DISALLOW_COPY_AND_ASSIGN(DevToolsNetworkControllerHandle);
+};
+
+}  // namespace brightray
+
+#endif  // BROWSER_DEVTOOLS_NETWORK_CONTROLLER_HANDLE_H_