Factor out GamepadCommon base class from Gamepad and WebKitGamepad

Source/modules/gamepad/GamepadCommon.cpp

Index: Source/modules/gamepad/GamepadCommon.cpp
diff --git a/Source/core/css/DocumentFontFaceSet.cpp b/Source/modules/gamepad/GamepadCommon.cpp
similarity index 80%
copy from Source/core/css/DocumentFontFaceSet.cpp
copy to Source/modules/gamepad/GamepadCommon.cpp
index a5952c64b271f9d5cc186f1a38b1298b202676de..58e4af6cbd299d3d07627d69f5d8fbdca951dbb4 100644
--- a/Source/core/css/DocumentFontFaceSet.cpp
+++ b/Source/modules/gamepad/GamepadCommon.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013, Google Inc. All rights reserved.
+ * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -24,15 +24,21 @@
  */
 
 #include "config.h"
-#include "core/css/DocumentFontFaceSet.h"
-
-#include "core/css/FontFaceSet.h"
+#include "modules/gamepad/GamepadCommon.h"
 
 namespace WebCore {
 
-PassRefPtr<FontFaceSet> DocumentFontFaceSet::fonts(Document& document)
+GamepadCommon::GamepadCommon()
+    : m_index(0)
+    , m_timestamp(0)
+{
+}
+
+void GamepadCommon::setAxes(unsigned count, const float* data)
 {
-    return FontFaceSet::from(document);
+    m_axes.resize(count);
+    if (count)
+        std::copy(data, data + count, m_axes.begin());
 }
 
 } // namespace WebCore