Blimp OAuth2 token retreival on application start up.

blimp/client/core/blimp_client_context_impl.h

 // Copyright 2016 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 BLIMP_CLIENT_CORE_BLIMP_CLIENT_CONTEXT_IMPL_H_
 #define BLIMP_CLIENT_CORE_BLIMP_CLIENT_CONTEXT_IMPL_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
 #include "blimp/client/core/session/client_network_components.h"
+#include "blimp/client/core/session/identity_source.h"
 #include "blimp/client/core/session/network_event_observer.h"
 #include "blimp/client/public/blimp_client_context.h"
 #include "blimp/client/public/contents/blimp_contents.h"
 #include "blimp/client/public/session/assignment.h"
 #include "blimp/net/blimp_connection_statistics.h"
 #include "blimp/net/thread_pipe_manager.h"
 #include "url/gurl.h"
 
 namespace blimp {
 namespace client {
@@ skipping 11 matching lines @@
   // operations.
   BlimpClientContextImpl(
       scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> file_thread_task_runner);
   ~BlimpClientContextImpl() override;
 
   // BlimpClientContext implementation.
   void SetDelegate(BlimpClientContextDelegate* delegate) override;
   std::unique_ptr<BlimpContents> CreateBlimpContents() override;
   void Connect(const std::string& client_auth_token) override;
+  void Connect() override;
 
   // NetworkEventObserver implementation.
   void OnConnected() override;
   void OnDisconnected(int result) override;
 
  protected:
   // Returns the URL to use for connections to the assigner. Used to construct
   // the AssignmentSource.
   virtual GURL GetAssignerURL();
 
@@ skipping 21 matching lines @@
   BlimpConnectionStatistics* blimp_connection_statistics_;
 
   std::unique_ptr<BlimpContentsManager> blimp_contents_manager_;
 
   // Container struct for network components.
   // Must be deleted on the IO thread.
   std::unique_ptr<ClientNetworkComponents> net_components_;
 
   std::unique_ptr<ThreadPipeManager> thread_pipe_manager_;
 
+  std::unique_ptr<IdentitySource> identity_source_;

[nyquist, 2016/08/12 05:47:04]

Could you explain what this is used for?

[xingliu, 2016/08/12 21:11:18]

Done.

+
   base::WeakPtrFactory<BlimpClientContextImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpClientContextImpl);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_CORE_BLIMP_CLIENT_CONTEXT_IMPL_H_