[Device Service] Move Gamepad Blink headers to be part of the Gamepad client library

third_party/WebKit/Source/modules/gamepad/GamepadDispatcher.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 GamepadDispatcher_h
 #define GamepadDispatcher_h
 
 #include "core/frame/PlatformEventDispatcher.h"
+#include "device/gamepad/public/cpp/gamepads.h"
 #include "platform/heap/Handle.h"
-#include "public/platform/WebGamepad.h"
 #include "public/platform/WebGamepadListener.h"
 
 namespace blink {
 
-class WebGamepads;
-
 class GamepadDispatcher final
     : public GarbageCollectedFinalized<GamepadDispatcher>,
       public PlatformEventDispatcher,
       public WebGamepadListener {
   USING_GARBAGE_COLLECTED_MIXIN(GamepadDispatcher);
 
  public:
   static GamepadDispatcher& Instance();
   ~GamepadDispatcher() override;
 
-  void SampleGamepads(WebGamepads&);
+  void SampleGamepads(device::Gamepads&);
 
   struct ConnectionChange {
     DISALLOW_NEW();
-    WebGamepad pad;
+    device::Gamepad pad;
     unsigned index;
   };
 
   const ConnectionChange& LatestConnectionChange() const {
     return latest_change_;
   }
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   GamepadDispatcher();
 
   // WebGamepadListener
-  void DidConnectGamepad(unsigned index, const WebGamepad&) override;
-  void DidDisconnectGamepad(unsigned index, const WebGamepad&) override;
+  void DidConnectGamepad(unsigned index, const device::Gamepad&) override;
+  void DidDisconnectGamepad(unsigned index, const device::Gamepad&) override;
 
   // PlatformEventDispatcher
   void StartListening() override;
   void StopListening() override;
 
   void DispatchDidConnectOrDisconnectGamepad(unsigned index,
-                                             const WebGamepad&,
+                                             const device::Gamepad&,
                                              bool connected);
 
   ConnectionChange latest_change_;
 };
 
 }  // namespace blink
 
 #endif