Fix BluetoothAdapterProfileChromeOS lifecycle management

device/bluetooth/bluetooth_adapter_profile_chromeos.h

Index: device/bluetooth/bluetooth_adapter_profile_chromeos.h
diff --git a/device/bluetooth/bluetooth_adapter_profile_chromeos.h b/device/bluetooth/bluetooth_adapter_profile_chromeos.h
index 5f1edc2ead5e57aa892079cac232e8b71460515c..a23c9e345f46601b5f0bfb0dc3bd9e17830c5297 100644
--- a/device/bluetooth/bluetooth_adapter_profile_chromeos.h
+++ b/device/bluetooth/bluetooth_adapter_profile_chromeos.h
@@ -28,7 +28,7 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothAdapterProfileChromeOS
   // options |options|.  Returns a newly allocated pointer, or nullptr
   // if there was a problem.
   static BluetoothAdapterProfileChromeOS* Register(
-      BluetoothAdapterChromeOS* adapter,
+      base::WeakPtr<BluetoothAdapterChromeOS> adapter,
       const device::BluetoothUUID& uuid,
       const BluetoothProfileManagerClient::Options& options,
       const base::Closure& success_callback,
@@ -55,8 +55,9 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothAdapterProfileChromeOS
   size_t DelegateCount() const { return delegates_.size(); }
 
  private:
-  BluetoothAdapterProfileChromeOS(BluetoothAdapterChromeOS* adapter,
-                                  const device::BluetoothUUID& uuid);
+  BluetoothAdapterProfileChromeOS(
+      base::WeakPtr<BluetoothAdapterChromeOS> adapter,
+      const device::BluetoothUUID& uuid);
 
   // BluetoothProfileServiceProvider::Delegate:
   void Released() override;
@@ -87,7 +88,7 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothAdapterProfileChromeOS
   scoped_ptr<BluetoothProfileServiceProvider> profile_;
 
   // Adapter that owns this profile.
-  BluetoothAdapterChromeOS* adapter_;
+  base::WeakPtr<BluetoothAdapterChromeOS> adapter_;
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.