ozone: evdev: Add gamepad support

services/ui/input_devices/input_device_unittests.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/test/test_mock_time_task_runner.h"
 #include "services/ui/input_devices/input_device_server.h"
@@ skipping 105 matching lines @@
   // Add keyboard and mark device lists complete.
   GetHotplugObserver()->OnTouchscreenDevicesUpdated(AsVector({touchscreen}));
   GetHotplugObserver()->OnDeviceListsComplete();
 
   RunUntilIdle();
   EXPECT_TRUE(client.AreDeviceListsComplete());
   EXPECT_EQ(1u, client.GetTouchscreenDevices().size());
   EXPECT_EQ(0u, client.GetKeyboardDevices().size());
   EXPECT_EQ(0u, client.GetMouseDevices().size());
   EXPECT_EQ(0u, client.GetTouchpadDevices().size());
+  EXPECT_EQ(0u, client.GetGamepadDevices().size());
 }
 
 TEST_F(InputDeviceTest, AddDeviceAfterComplete) {
   const InputDevice keyboard1(100, INPUT_DEVICE_INTERNAL, "Keyboard1");
   const InputDevice keyboard2(200, INPUT_DEVICE_EXTERNAL, "Keyboard2");
   const InputDevice mouse(300, INPUT_DEVICE_EXTERNAL, "Mouse");
 
   TestInputDeviceClient client;
   AddClientAsObserver(&client);
 
@@ skipping 53 matching lines @@
   EXPECT_EQ(1u, client.GetTouchpadDevices().size());
 
   // Check the touchpad fields match.
   const InputDevice& output = client.GetTouchpadDevices()[0];
   EXPECT_EQ(touchpad.id, output.id);
   EXPECT_EQ(touchpad.type, output.type);
   EXPECT_EQ(touchpad.name, output.name);
 }
 
 }  // namespace ui