bluetooth: Implement simulateGATTConnectionResponse()

device/bluetooth/test/fake_peripheral.h

Index: device/bluetooth/test/fake_peripheral.h
diff --git a/device/bluetooth/test/fake_peripheral.h b/device/bluetooth/test/fake_peripheral.h
index 8e6222234814a651def3dd1e72fd8dd351cf14ce..b105c4f134be7db1ec83d456dd737fbb7bcab8ef 100644
--- a/device/bluetooth/test/fake_peripheral.h
+++ b/device/bluetooth/test/fake_peripheral.h
@@ -8,6 +8,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "base/memory/weak_ptr.h"
 #include "base/optional.h"
 #include "device/bluetooth/bluetooth_device.h"
 #include "device/bluetooth/test/fake_central.h"
@@ -24,13 +25,20 @@ class FakePeripheral : public device::BluetoothDevice {
   // Changes the name of the device.
   void SetName(base::Optional<std::string> name);
 
-  // Set it to indicate if the Peripheral is connected or not.
-  void SetGattConnected(bool gatt_connected);
+  // Set it to indicate if the system has connected to the Peripheral outside of
+  // the Bluetooth interface e.g. the user connected to the device through
+  // system settings.
+  void SetSystemConnected(bool gatt_connected);
 
   // Updates the peripheral's UUIDs that are returned by
   // BluetoothDevice::GetUUIDs().
   void SetServiceUUIDs(UUIDSet service_uuids);
 
+  // If |code| is kHCISuccess calls a pending success callback for
+  // CreateGattConnection. Otherwise calls a pending error callback
+  // with the ConnectErrorCode corresponding to |code|.
+  void SetNextGATTConnectionResponse(uint16_t code);
+
   // BluetoothDevice overrides:
   uint32_t GetBluetoothClass() const override;
 #if defined(OS_CHROMEOS) || defined(OS_LINUX)
@@ -78,16 +86,31 @@ class FakePeripheral : public device::BluetoothDevice {
       const device::BluetoothUUID& uuid,
       const ConnectToServiceCallback& callback,
       const ConnectToServiceErrorCallback& error_callback) override;
+  void CreateGattConnection(
+      const GattConnectionCallback& callback,
+      const ConnectErrorCallback& error_callback) override;
 
  protected:
   void CreateGattConnectionImpl() override;
   void DisconnectGatt() override;
 
  private:
+  void DispatchConnectionResponse();
+
   const std::string address_;
   base::Optional<std::string> name_;
-  bool gatt_connected_;
   UUIDSet service_uuids_;
+  // True when the system has connected to the device outside of the Bluetooth
+  // interface e.g. the user connected to the device through system settings.
+  bool system_connected_;
+  // True when this Bluetooth interface is connected to the device.
+  bool gatt_connected_;
+
+  // Used to decide which callback should be called when
+  // CreateGattConnection is called.
+  base::Optional<uint16_t> next_connection_response_;
+
+  base::WeakPtrFactory<FakePeripheral> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakePeripheral);
 };