Turn test runner library into an actual component

components/test_runner/gamepad_controller.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_TEST_RUNNER_GAMEPAD_CONTROLLER_H_
 #define COMPONENTS_TEST_RUNNER_GAMEPAD_CONTROLLER_H_
 
 #include <map>
 
 #include "base/memory/weak_ptr.h"
+#include "components/test_runner/test_runner_export.h"
 #include "third_party/WebKit/public/platform/WebGamepads.h"
 
 namespace blink {
 class WebFrame;
 class WebGamepadListener;
 }
 
 namespace test_runner {
 
 class WebTestDelegate;
 
-class GamepadController : public base::SupportsWeakPtr<GamepadController> {
+class TEST_RUNNER_EXPORT GamepadController
+    : public base::SupportsWeakPtr<GamepadController> {
  public:
   static base::WeakPtr<GamepadController> Create(WebTestDelegate* delegate);
   ~GamepadController();
 
   void Reset();
   void Install(blink::WebFrame* frame);
 
   void SampleGamepads(blink::WebGamepads& gamepads);
   void SetListener(blink::WebGamepadListener* listener);
 
@@ skipping 25 matching lines @@
   std::map<int, bool> pending_changes_;
 
   base::WeakPtrFactory<GamepadController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GamepadController);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_GAMEPAD_CONTROLLER_H_