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 31482f0c5cc4fbef518f784ad8061bfcf5d5e1ac..c2762e6a5c811ae43fed24a29b216e8918a63cbf 100644
--- a/device/bluetooth/test/fake_bluetooth.h
+++ b/device/bluetooth/test/fake_bluetooth.h
@@ -6,13 +6,14 @@
 
 #include "base/compiler_specific.h"
 #include "device/bluetooth/public/interfaces/test/fake_bluetooth.mojom.h"
-#include "mojo/public/cpp/bindings/binding.h"
+#include "device/bluetooth/test/fake_le_central_observer_manager.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();
@@ -22,6 +23,12 @@ class FakeBluetooth : NON_EXPORTED_BASE(public mojom::FakeBluetooth) {
 
   void SetLESupported(bool available,
                       const SetLESupportedCallback& callback) override;
+  void SimulateLECentralObserverManager(
+      mojom::LECentralObserverManagerState state,
+      const SimulateLECentralObserverManagerCallback& callback) override;
+
+ private:
+  scoped_refptr<FakeLECentralObserverManager> fake_manager_;
 };
 
 }  // namespace bluetooth