Added non-prefixed navigator.getGamepads() with updated API

Source/modules/modules.gypi

Index: Source/modules/modules.gypi
diff --git a/Source/modules/modules.gypi b/Source/modules/modules.gypi
index dd6678e3f194f480e569879b82c6a6d2ac865099..de3572c14324ca907b4f1d642ca7f2e25b39cde6 100644
--- a/Source/modules/modules.gypi
+++ b/Source/modules/modules.gypi
@@ -51,7 +51,11 @@
       'filesystem/Metadata.idl',
       'filesystem/MetadataCallback.idl',
       'gamepad/Gamepad.idl',
+      'gamepad/GamepadBase.idl',
+      'gamepad/GamepadButton.idl',
       'gamepad/GamepadList.idl',
+      'gamepad/WebKitGamepad.idl',
+      'gamepad/WebKitGamepadList.idl',
       'geolocation/Coordinates.idl',
       'geolocation/Geolocation.idl',
       'geolocation/Geoposition.idl',
@@ -355,10 +359,18 @@
       'filesystem/WorkerGlobalScopeFileSystem.h',
       'gamepad/Gamepad.cpp',
       'gamepad/Gamepad.h',
+      'gamepad/GamepadBase.cpp',
+      'gamepad/GamepadBase.h',
+      'gamepad/GamepadButton.cpp',
+      'gamepad/GamepadButton.h',
       'gamepad/GamepadList.cpp',
       'gamepad/GamepadList.h',
       'gamepad/NavigatorGamepad.cpp',
       'gamepad/NavigatorGamepad.h',
+      'gamepad/WebKitGamepad.cpp',
+      'gamepad/WebKitGamepad.h',
+      'gamepad/WebKitGamepadList.cpp',
+      'gamepad/WebKitGamepadList.h',
       'geolocation/Coordinates.cpp',
       'geolocation/Geolocation.cpp',
       'geolocation/GeolocationController.cpp',