Add chrome.hid.getUserSelectedDevices API.

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/hid/hid_connection_resource.h"
 #include "extensions/browser/api/hid/hid_device_manager.h"
 #include "extensions/browser/extension_function.h"
 #include "extensions/common/api/hid.h"
 
 namespace device {
 class HidConnection;
+class HidDeviceInfo;
 class HidService;
 }  // namespace device
 
 namespace net {
 class IOBuffer;
 }  // namespace net
 
 namespace extensions {
 
+class DevicePermissionsPrompt;
+
 class HidGetDevicesFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("hid.getDevices", HID_GETDEVICES);
 
   HidGetDevicesFunction();
 
  private:
   ~HidGetDevicesFunction() override;
 
   // ExtensionFunction:
   ResponseAction Run() override;
 
   void OnEnumerationComplete(scoped_ptr<base::ListValue> devices);
 
   DISALLOW_COPY_AND_ASSIGN(HidGetDevicesFunction);
 };
 
+class HidGetUserSelectedDevicesFunction : public UIThreadExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("hid.getUserSelectedDevices",
+                             HID_GETUSERSELECTEDDEVICES)
+
+  HidGetUserSelectedDevicesFunction();
+
+ private:
+  ~HidGetUserSelectedDevicesFunction() override;
+
+  // ExtensionFunction:
+  ResponseAction Run() override;
+
+  void OnDevicesChosen(
+      const std::vector<scoped_refptr<device::HidDeviceInfo>>& devices);
+
+  HidDeviceManager* device_manager_;
+  scoped_ptr<DevicePermissionsPrompt> prompt_;
+
+  DISALLOW_COPY_AND_ASSIGN(HidGetUserSelectedDevicesFunction);
+};
+
 class HidConnectFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("hid.connect", HID_CONNECT);
 
   HidConnectFunction();
 
  private:
   ~HidConnectFunction() override;
 
   // ExtensionFunction:
@@ skipping 123 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_