Delete WebGamepads::length.

third_party/WebKit/public/platform/Platform.h

 /*
  * Copyright (C) 2012 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 254 matching lines @@
 
   // Cache Storage ----------------------------------------------------------
 
   // The caller is responsible for deleting the returned object.
   virtual WebServiceWorkerCacheStorage* cacheStorage(const WebSecurityOrigin&) {
     return nullptr;
   }
 
   // Gamepad -------------------------------------------------------------
 
-  virtual void sampleGamepads(WebGamepads& into) { into.length = 0; }
+  virtual void sampleGamepads(WebGamepads& into) {}
 
   // History -------------------------------------------------------------
 
   // Returns the hash for the given canonicalized URL for use in visited
   // link coloring.
   virtual unsigned long long visitedLinkHash(const char* canonicalURL,
                                              size_t length) {
     return 0;
   }
 
@@ skipping 385 matching lines @@
  protected:
   Platform();
   virtual ~Platform() {}
 
   WebThread* m_mainThread;
 };
 
 }  // namespace blink
 
 #endif