Convert //components/[a-e]* from scoped_ptr to std::unique_ptr

components/arc/bluetooth/arc_bluetooth_bridge.cc

Index: components/arc/bluetooth/arc_bluetooth_bridge.cc
diff --git a/components/arc/bluetooth/arc_bluetooth_bridge.cc b/components/arc/bluetooth/arc_bluetooth_bridge.cc
index 82dd89ceb0f2a60911d4d3e015baa30699fca022..f34a400da1107943fc4ce5f38ec56d737d1c3d08 100644
--- a/components/arc/bluetooth/arc_bluetooth_bridge.cc
+++ b/components/arc/bluetooth/arc_bluetooth_bridge.cc
@@ -360,7 +360,7 @@ void ArcBluetoothBridge::OnPoweredError(
 }
 
 void ArcBluetoothBridge::OnDiscoveryStarted(
-    scoped_ptr<BluetoothDiscoverySession> session) {
+    std::unique_ptr<BluetoothDiscoverySession> session) {
   if (!HasBluetoothInstance())
     return;