Adding support for pre-sent messages

components/copresence/copresence_manager_impl.h

Index: components/copresence/copresence_manager_impl.h
diff --git a/components/copresence/copresence_manager_impl.h b/components/copresence/copresence_manager_impl.h
index 69d856154af0fdf3a14ed979e5d3bbe6bf87142c..3d4e6af079051b762792439314020ed9c712f1d8 100644
--- a/components/copresence/copresence_manager_impl.h
+++ b/components/copresence/copresence_manager_impl.h
@@ -13,6 +13,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "components/copresence/copresence_state_impl.h"
 #include "components/copresence/public/copresence_manager.h"
+#include "components/copresence/timed_map.h"
 
 namespace base {
 class Timer;
@@ -28,6 +29,7 @@ class DirectiveHandler;
 class GCMHandler;
 class ReportRequest;
 class RpcHandler;
+class SubscribedMessage;
 class WhispernetClient;
 
 // The implementation for CopresenceManager. Responsible primarily for
@@ -49,19 +51,25 @@ class CopresenceManagerImpl : public CopresenceManager {
                             const StatusCallback& callback) override;
 
  private:
+  // Complete initialization when Whispernet is available.
   void WhispernetInitComplete(bool success);
 
   // 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
+  // Verifies that we can hear the audio we're playing.
+  // This gets called every kAudioCheckIntervalMs milliseconds.
+  void AudioCheck();
+
+  // This gets called every kPollTimerIntervalMs milliseconds
   // to poll the server for new messages.
   void PollForMessages();
 
-  // Verify that we can hear the audio we're playing
-  // every kAudioCheckIntervalMs milliseconds.
-  void AudioCheck();
+  // Send SubscribedMessages to the appropriate clients. Can be called with
+  // a vector or anything that behaves like one, e.g. RepeatedPtrField.
+  template<typename IterableSubscribedMessages>
+  void DispatchMessages(const IterableSubscribedMessages& subscribed_messages);
 
   // Belongs to the caller.
   CopresenceDelegate* const delegate_;
@@ -82,6 +90,9 @@ class CopresenceManagerImpl : public CopresenceManager {
   scoped_ptr<base::Timer> poll_timer_;
   scoped_ptr<base::Timer> audio_check_timer_;
 
+  TimedMap<std::string, std::vector<SubscribedMessage>>
+  queued_messages_by_token_;
+
   DISALLOW_COPY_AND_ASSIGN(CopresenceManagerImpl);
 };