Adding support for pre-sent messages

components/copresence/public/copresence_delegate.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_PUBLIC_COPRESENCE_DELEGATE_H_
 #define COMPONENTS_COPRESENCE_PUBLIC_COPRESENCE_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 20 matching lines @@
 using StatusCallback = base::Callback<void(CopresenceStatus)>;
 
 // A delegate interface for users of Copresence.
 class CopresenceDelegate {
  public:
   // This method will be called when we have subscribed messages
   // that need to be sent to their respective apps.
   virtual void HandleMessages(
       const std::string& app_id,
       const std::string& subscription_id,
-      const std::vector<Message>& message) = 0;
+      const std::vector<Message>& messages) = 0;
 
   virtual void HandleStatusUpdate(CopresenceStatus status) = 0;
 
   // Thw URLRequestContextGetter must outlive the CopresenceManager.
   virtual net::URLRequestContextGetter* GetRequestContext() const = 0;
 
   virtual const std::string GetPlatformVersionString() const = 0;
 
   virtual const std::string GetAPIKey(const std::string& app_id) const = 0;
 
   // Thw WhispernetClient must outlive the CopresenceManager.
   virtual WhispernetClient* GetWhispernetClient() = 0;
 
   // Clients may optionally provide a GCMDriver to receive messages from.
   // If no driver is available, this can return null.
   virtual gcm::GCMDriver* GetGCMDriver() = 0;
 
  protected:
   virtual ~CopresenceDelegate() {}
 };
 
 }  // namespace copresence
 
 #endif  // COMPONENTS_COPRESENCE_PUBLIC_COPRESENCE_DELEGATE_H_