Read HID report descriptor from sysfs and request permission on connect.

extensions/browser/api/hid/hid_api.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_API_H_
 #define EXTENSIONS_BROWSER_API_HID_HID_API_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "extensions/browser/api/api_resource_manager.h"
 #include "extensions/browser/api/async_api_function.h"
 #include "extensions/browser/api/hid/hid_connection_resource.h"
 #include "extensions/browser/api/hid/hid_device_manager.h"
 #include "extensions/common/api/hid.h"
 
+namespace device {
+class HidService;
+}  // namespace device
+
 namespace net {
 class IOBuffer;
 }  // namespace net
 
 namespace extensions {
 
 class HidAsyncApiFunction : public AsyncApiFunction {
  public:
   HidAsyncApiFunction();
 
@@ skipping 39 matching lines @@
 
   HidConnectFunction();
 
  protected:
   virtual bool Prepare() override;
   virtual void AsyncWorkStart() override;
 
  private:
   virtual ~HidConnectFunction();
 
+  void OnRequestAccessComplete(bool success);
+
   scoped_ptr<core_api::hid::Connect::Params> parameters_;
+  device::HidDeviceInfo device_info_;
 
   DISALLOW_COPY_AND_ASSIGN(HidConnectFunction);
 };
 
 class HidDisconnectFunction : public HidAsyncApiFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("hid.disconnect", HID_DISCONNECT);
 
   HidDisconnectFunction();
 
@@ skipping 90 matching lines @@
   void OnFinished(bool success);
 
   scoped_ptr<core_api::hid::SendFeatureReport::Params> parameters_;
 
   DISALLOW_COPY_AND_ASSIGN(HidSendFeatureReportFunction);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_HID_HID_API_H_