Remove weak_ptr from CopresenceManager.

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/callback.h"
+#include "base/cancelable_callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
 #include "components/copresence/proto/rpcs.pb.h"
 #include "components/copresence/public/copresence_manager.h"
 
 namespace net {
 class URLContextGetter;
 }
 
 namespace copresence {
 
 class RpcHandler;
 
 struct PendingRequest {
   PendingRequest(const ReportRequest& report,
                  const std::string app_id,
                  const StatusCallback& callback);
   ~PendingRequest();
 
   ReportRequest report;
   std::string app_id;
   StatusCallback callback;
 };
 
 // The implementation for CopresenceManager.
-class CopresenceManagerImpl : public CopresenceManager,
-    public base::SupportsWeakPtr<CopresenceManagerImpl> {
+class CopresenceManagerImpl : public CopresenceManager {
  public:
   virtual ~CopresenceManagerImpl();
   virtual void ExecuteReportRequest(ReportRequest request,
                                     const std::string& app_id,
                                     const StatusCallback& callback) OVERRIDE;
 
  private:
   // Create managers with the CopresenceManager::Create() method.
   friend class CopresenceManager;
   CopresenceManagerImpl(CopresenceDelegate* delegate);
 
   void CompleteInitialization();
   void InitStepComplete(const std::string& step, bool success);
 
   bool init_failed_;
   std::vector<PendingRequest> pending_requests_queue_;
 
+  base::CancelableCallback<void(bool)> init_callback_;
+
   // TODO(rkc): This code is almost identical to what we use in feedback to
   // perform multiple blocking tasks and then run a post process method. Look
   // into refactoring it all out to a common construct, like maybe a
   // PostMultipleTasksAndReply?
   size_t pending_init_operations_;
 
   CopresenceDelegate* const delegate_;
   scoped_ptr<RpcHandler> rpc_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(CopresenceManagerImpl);
 };
 
 }  // namespace copresence
 
 #endif  // COMPONENTS_COPRESENCE_COPRESENCE_MANAGER_IMPL_H_