Add the ability for DevTools to wrap network transactions.

chrome/browser/devtools/devtools_network_controller.h

+// Copyright 2014 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 file.
+
+#ifndef CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_CONTROLLER_H_
+#define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_CONTROLLER_H_
+
+#include <set>
+#include <string>
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+
+class DevToolsNetworkTransaction;
+class GURL;
+class Profile;
+
+namespace content {
+class BrowserContext;

[mmenke, 2014/04/21 17:16:51]

This doesn't seem to be used.

[eustas, 2014/04/22 14:23:09]

Done.

+class ResourceContext;
+}  // namespace content

[mmenke, 2014/04/21 17:16:51]

optional nit:  I don't believe the close namespace comment is generally used in
forward declarations.

[eustas, 2014/04/22 14:23:09]

Done.

+
+// DevToolsNetworkController tracks DevToolsNetworkTransactions.
+class DevToolsNetworkController {
+

[mmenke, 2014/04/21 17:16:51]

nit:  There's generally no linebreak here

[eustas, 2014/04/22 14:23:09]

Done.

+ public:
+  DevToolsNetworkController();
+  virtual ~DevToolsNetworkController();
+
+  void AddTransaction(DevToolsNetworkTransaction* transaction);
+
+  void RemoveTransaction(DevToolsNetworkTransaction* transaction);
+
+  // Disables / reenables network. |id| should be DevToolsAgentHost GUID.

[mmenke, 2014/04/21 17:16:51]

nit:  id -> client_id

[eustas, 2014/04/22 14:23:09]

Done.

+  static void DisableNetwork(
+      Profile* profile,
+      const std::string& client_id,
+      bool disable_network);
+
+  static void DisableNetworkOnIO(
+      content::ResourceContext* resource_context,
+      const std::string& client_id,
+      bool disable_network);
+
+  void DisableNetwork(
+      const std::string& client_id,
+      bool disable_network);
+
+  bool ShouldFail(const DevToolsNetworkTransaction* transaction);
+
+ private:
+  typedef std::set<DevToolsNetworkTransaction*> Transactions;
+  Transactions transactions_;
+
+  typedef std::set<std::string> Clients;
+  Clients clients_;
+
+  DISALLOW_COPY_AND_ASSIGN(DevToolsNetworkController);
+};
+
+#endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_CONTROLLER_H_