Revert 281133 "chrome.hid: enrich model with report IDs"

trunk/src/chrome/browser/extensions/api/hid/hid_device_manager.h

Index: trunk/src/chrome/browser/extensions/api/hid/hid_device_manager.h
===================================================================
--- trunk/src/chrome/browser/extensions/api/hid/hid_device_manager.h	(revision 281281)
+++ trunk/src/chrome/browser/extensions/api/hid/hid_device_manager.h	(working copy)
@@ -44,6 +44,15 @@
 
   void UpdateDevices();
 
+  // Determines if a given device interface should be accessible to API
+  // consumers. In order for a device interface to be accessible, ALL of its
+  // specified usages must be accessible.
+  static bool IsDeviceAccessible(const device::HidDeviceInfo& device_info);
+
+  // Determines if a given usage is available to API consumers. This is used to
+  // blacklist usages which could be security or privacy concerns.
+  static bool IsUsageAccessible(const device::HidUsageAndPage& usage_and_page);
+
   base::ThreadChecker thread_checker_;
 
   int next_resource_id_;