Expose SetDiscoveryFilter from BluetoothEventRouter

device/bluetooth/test/mock_bluetooth_adapter.h

Index: device/bluetooth/test/mock_bluetooth_adapter.h
diff --git a/device/bluetooth/test/mock_bluetooth_adapter.h b/device/bluetooth/test/mock_bluetooth_adapter.h
index d338256255704ee09ca1f706802b6782b0bd3778..19f0c3705fe06b99e50a17bfb451dcc31c9c33f1 100644
--- a/device/bluetooth/test/mock_bluetooth_adapter.h
+++ b/device/bluetooth/test/mock_bluetooth_adapter.h
@@ -61,6 +61,10 @@ class MockBluetoothAdapter : public BluetoothAdapter {
   MOCK_METHOD2(StartDiscoverySession,
                void(const DiscoverySessionCallback& callback,
                     const ErrorCallback& error_callback));
+  MOCK_METHOD3(StartDiscoverySessionWithFilterRaw,
+               void(const BluetoothDiscoveryFilter*,
+                    const DiscoverySessionCallback& callback,
+                    const ErrorCallback& error_callback));
   MOCK_CONST_METHOD0(GetDevices, BluetoothAdapter::ConstDeviceList());
   MOCK_METHOD1(GetDevice, BluetoothDevice*(const std::string& address));
   MOCK_CONST_METHOD1(GetDevice,
@@ -86,6 +90,11 @@ class MockBluetoothAdapter : public BluetoothAdapter {
                     const AcquiredCallback& callback,
                     const BluetoothAudioSink::ErrorCallback& error_callback));
 
+  void StartDiscoverySessionWithFilter(
+      const scoped_ptr<BluetoothDiscoveryFilter> discovery_filter,
+      const DiscoverySessionCallback& callback,
+      const ErrorCallback& error_callback);
+
  protected:
   void DeleteOnCorrectThread() const override;
   void AddDiscoverySession(BluetoothDiscoveryFilter* discovery_filter,