Add more generic filters to the chrome.hid.getDevices API.

extensions/browser/api/hid/hid_device_manager.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 EXTENSIONS_BROWSER_API_HID_HID_DEVICE_MANAGER_H_
 #define EXTENSIONS_BROWSER_API_HID_HID_DEVICE_MANAGER_H_
 
 #include <stdint.h>
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "device/hid/hid_device_info.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/common/api/hid.h"
 
+namespace device {
+class HidDeviceFilter;
+}
+
 namespace extensions {
 
+class Extension;
+
 class HidDeviceManager : public BrowserContextKeyedAPI {
  public:
   explicit HidDeviceManager(content::BrowserContext* context);
   virtual ~HidDeviceManager();
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<HidDeviceManager>* GetFactoryInstance();
 
   // Convenience method to get the HidDeviceManager for a profile.
   static HidDeviceManager* Get(content::BrowserContext* context) {
     return BrowserContextKeyedAPIFactory<HidDeviceManager>::Get(context);
   }
 
-  scoped_ptr<base::ListValue> GetApiDevices(uint16_t vendor_id,
-                                            uint16_t product_id);
+  scoped_ptr<base::ListValue> GetApiDevices(
+      const Extension* extension,
+      const std::vector<device::HidDeviceFilter>& filters);
 
   bool GetDeviceInfo(int resource_id, device::HidDeviceInfo* device_info);
 
+  bool HasPermission(const Extension* extension,
+                     const device::HidDeviceInfo& device_info);
+
  private:
   friend class BrowserContextKeyedAPIFactory<HidDeviceManager>;
 
   static const char* service_name() { return "HidDeviceManager"; }
 
   void UpdateDevices();
 
   base::ThreadChecker thread_checker_;
 
   int next_resource_id_;
 
   typedef std::map<int, device::HidDeviceId> ResourceIdToDeviceIdMap;
   typedef std::map<device::HidDeviceId, int> DeviceIdToResourceIdMap;
 
   ResourceIdToDeviceIdMap device_ids_;
   DeviceIdToResourceIdMap resource_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(HidDeviceManager);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_HID_HID_DEVICE_MANAGER_H_