bluetooth: Improve testability

chromeos/dbus/mock_bluetooth_input_client.h

Index: chromeos/dbus/mock_bluetooth_input_client.h
diff --git a/chromeos/dbus/mock_bluetooth_input_client.h b/chromeos/dbus/mock_bluetooth_input_client.h
index afa438c4af9f6e32386d4ca7a1aab05c7623174e..d4a858e2352478721aed75f3bd3e9f98544c81e0 100644
--- a/chromeos/dbus/mock_bluetooth_input_client.h
+++ b/chromeos/dbus/mock_bluetooth_input_client.h
@@ -14,6 +14,20 @@ namespace chromeos {
 
 class MockBluetoothInputClient : public BluetoothInputClient {
  public:
+  struct Properties : public BluetoothInputClient::Properties {
+    Properties();
+    virtual ~Properties();
+
+    MOCK_METHOD0(ConnectSignals, void());
+
+    MOCK_METHOD2(Get, void(dbus::PropertyBase* property,
+                           dbus::PropertySet::GetCallback callback));
+    MOCK_METHOD0(GetAll, void());
+    MOCK_METHOD2(Set, void(dbus::PropertyBase* property,
+                           dbus::PropertySet::SetCallback callback));
+
+    MOCK_METHOD1(ChangedRecevied, void(dbus::Signal*));
+  };
   MockBluetoothInputClient();
   virtual ~MockBluetoothInputClient();