Adding CopresenceState

components/copresence/copresence_manager_impl.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 COMPONENTS_COPRESENCE_COPRESENCE_MANAGER_IMPL_H_
 #define COMPONENTS_COPRESENCE_COPRESENCE_MANAGER_IMPL_H_
 
 #include <string>
+#include <vector>
 
 #include "base/cancelable_callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
+#include "components/copresence/copresence_state_impl.h"
 #include "components/copresence/public/copresence_manager.h"
 
 namespace base {
 class Timer;
 }
 
 namespace net {
 class URLContextGetter;
 }
 
 namespace copresence {
 
 class DirectiveHandler;
 class GCMHandler;
 class ReportRequest;
 class RpcHandler;
 class WhispernetClient;
 
 // The implementation for CopresenceManager. Responsible primarily for
 // client-side initialization. The RpcHandler handles all the details
 // of interacting with the server.
 // TODO(rkc): Add tests for this class.
 class CopresenceManagerImpl : public CopresenceManager {
  public:
   // The delegate is owned by the caller, and must outlive the manager.
   explicit CopresenceManagerImpl(CopresenceDelegate* delegate);
 
   ~CopresenceManagerImpl() override;
 
+  // CopresenceManager overrides.
+  CopresenceState* state() override;
   void ExecuteReportRequest(const ReportRequest& request,
                             const std::string& app_id,
                             const std::string& auth_token,
                             const StatusCallback& callback) override;
 
  private:
   void WhispernetInitComplete(bool success);
 
-  // This function will be called every kPollTimerIntervalMs milliseconds to
-  // poll the server for new messages.
+  // Handle tokens decoded by Whispernet.
+  // TODO(ckehoe): Replace AudioToken with ReceivedToken.
+  void ReceivedTokens(const std::vector<AudioToken>& tokens);
+
+  // This function will be called every kPollTimerIntervalMs milliseconds
+  // to poll the server for new messages.
   void PollForMessages();
 
-  // This function will verify that we can hear the audio we're playing every
-  // kAudioCheckIntervalMs milliseconds.
+  // Verify that we can hear the audio we're playing
+  // every kAudioCheckIntervalMs milliseconds.
   void AudioCheck();
 
   // Belongs to the caller.
   CopresenceDelegate* const delegate_;
 
   // We use a CancelableCallback here because Whispernet
   // does not provide a way to unregister its init callback.
   base::CancelableCallback<void(bool)> whispernet_init_callback_;
 
   bool init_failed_;
 
-  // The GCMHandler must destruct before the DirectiveHandler,
-  // which must destruct before the RpcHandler. Do not change this order.
+  // This order is required because each object
+  // makes calls to those listed before it.
+  scoped_ptr<CopresenceStateImpl> state_;
   scoped_ptr<RpcHandler> rpc_handler_;
   scoped_ptr<DirectiveHandler> directive_handler_;
   scoped_ptr<GCMHandler> gcm_handler_;
 
   scoped_ptr<base::Timer> poll_timer_;
   scoped_ptr<base::Timer> audio_check_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CopresenceManagerImpl);
 };
 
 }  // namespace copresence
 
 #endif  // COMPONENTS_COPRESENCE_COPRESENCE_MANAGER_IMPL_H_