Substituting legacy protocol with uWeave protocol

components/proximity_auth/ble/bluetooth_low_energy_weave_packet_generator.h

 // Copyright 2016 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_PROXIMITY_AUTH_BLE_BLUETOOTH_LOW_ENERGY_WEAVE_PACKET_GENERATOR_H_
 #define COMPONENTS_PROXIMITY_AUTH_BLE_BLUETOOTH_LOW_ENERGY_WEAVE_PACKET_GENERATOR_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "components/proximity_auth/ble/bluetooth_low_energy_weave_defines.h"
 #include "build/build_config.h"
 
 namespace proximity_auth {
 namespace weave {
 
 // Generates the messages sent using the uWeave protocol.
 class BluetoothLowEnergyWeavePacketGenerator {
  public:
   class Factory {
    public:
     static std::unique_ptr<BluetoothLowEnergyWeavePacketGenerator>
     NewInstance();
 
     // Exposed for testing.
-    static void SetInstanceForTesting(Factory* factory);
+    static void SetInstanceForTesting(std::shared_ptr<Factory> factory);
 
    protected:
     // Exposed for testing.
     virtual std::unique_ptr<BluetoothLowEnergyWeavePacketGenerator>
     BuildInstance();
 
    private:
-    static Factory* factory_instance_;
+    static std::shared_ptr<Factory> factory_instance_;
   };
 
   virtual Packet CreateConnectionRequest();
   virtual Packet CreateConnectionResponse();
   virtual Packet CreateConnectionClose(ReasonForClose reason_for_close);
 
   // Packet size must be greater than or equal to 20.
   virtual void SetMaxPacketSize(uint16_t size);
 
   // Will crash if message is empty.
@@ skipping 16 matching lines @@
 
   // Counter for the number of packets sent, starting at 0.
   uint8_t next_packet_counter_;
 };
 
 }  // namespace weave
 
 }  // namespace proximity_auth
 
 #endif  // COMPONENTS_PROXIMITY_AUTH_BLE_BLUETOOTH_LOW_ENERGY_WEAVE_PACKET_GENERATOR_H_