chrome.hid: enrich model with report IDs

device/hid/hid_usage_and_page.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 DEVICE_HID_HID_USAGE_AND_PAGE_H_
 #define DEVICE_HID_HID_USAGE_AND_PAGE_H_
 
 #include "base/basictypes.h"
 
 namespace device {
@@ skipping 108 matching lines @@
     kGenericDesktopSystemDisplaySwap = 0xb6,
   };
 
   HidUsageAndPage(uint16_t usage, Page usage_page)
       : usage(usage), usage_page(usage_page) {}
   ~HidUsageAndPage() {}
 
   uint16_t usage;
   Page usage_page;
 
-  bool operator==(const HidUsageAndPage& other) const;
+  // Indicates whether this usage is protected by Chrome.
+  bool IsProtected() const;
 };
 
 }  // namespace device
 
 #endif  // DEVICE_HID_HID_USAGE_AND_PAGE_H_