[GCM] Handling connection events in GCMAccountTracker

components/gcm_driver/gcm_account_mapper.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_GCM_DRIVER_GCM_ACCOUNT_MAPPER_H_
 #define COMPONENTS_GCM_DRIVER_GCM_ACCOUNT_MAPPER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "components/gcm_driver/gcm_app_handler.h"
 #include "components/gcm_driver/gcm_client.h"
 #include "google_apis/gcm/engine/account_mapping.h"
 
 namespace base {
 class Clock;
 }
 
 namespace gcm {
 
 class GCMDriver;
+extern const char kGCMAccountMapperAppId[];
 
 // Class for mapping signed-in GAIA accounts to the GCM Device ID.
 class GCMAccountMapper : public GCMAppHandler {
  public:
   // List of account mappings.
   typedef std::vector<AccountMapping> AccountMappings;
 
   explicit GCMAccountMapper(GCMDriver* gcm_driver);
   virtual ~GCMAccountMapper();
 
@@ skipping 80 matching lines @@
   bool initialized_;
 
   base::WeakPtrFactory<GCMAccountMapper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMAccountMapper);
 };
 
 }  // namespace gcm
 
 #endif  // COMPONENTS_GCM_DRIVER_GCM_ACCOUNT_MAPPER_H_