bluetooth: Implement simulateCentral

device/bluetooth/test/fake_bluetooth.h

Index: device/bluetooth/test/fake_bluetooth.h
diff --git a/device/bluetooth/test/fake_bluetooth.h b/device/bluetooth/test/fake_bluetooth.h
index 83e4bb480998e6f845f764f9b1f5ca48d71db461..0d7d1aa527e070408382ef18c4b97dfcbe2c16e1 100644
--- a/device/bluetooth/test/fake_bluetooth.h
+++ b/device/bluetooth/test/fake_bluetooth.h
@@ -4,16 +4,19 @@
 #ifndef DEVICE_BLUETOOTH_TEST_FAKE_BLUETOOTH_H_
 #define DEVICE_BLUETOOTH_TEST_FAKE_BLUETOOTH_H_
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "device/bluetooth/bluetooth_adapter_factory.h"
 #include "device/bluetooth/public/interfaces/test/fake_bluetooth.mojom.h"
-#include "mojo/public/cpp/bindings/binding.h"
+#include "device/bluetooth/test/fake_central.h"
 
 namespace bluetooth {
 
 // Implementation of FakeBluetooth in
 // src/device/bluetooth/public/interfaces/test/fake_bluetooth.mojom.
-// Implemented on top of the C++ device/bluetooth API.
+// Implemented on top of the C++ device/bluetooth API, mainly
+// device/bluetooth/bluetooth_adapter_factory.h.
 class FakeBluetooth : NON_EXPORTED_BASE(public mojom::FakeBluetooth) {
  public:
   FakeBluetooth();
@@ -23,10 +26,13 @@ class FakeBluetooth : NON_EXPORTED_BASE(public mojom::FakeBluetooth) {
 
   void SetLESupported(bool available,
                       const SetLESupportedCallback& callback) override;
+  void SimulateCentral(mojom::CentralState state,
+                       const SimulateCentralCallback& callback) override;
 
  private:
   std::unique_ptr<device::BluetoothAdapterFactory::GlobalValuesForTesting>
       global_factory_values_;
+  scoped_refptr<FakeCentral> fake_central_;
 };
 
 }  // namespace bluetooth