Separate USB device permissions prompt logic into subclasses.

extensions/browser/api/usb/usb_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_USB_USB_API_H_
 #define EXTENSIONS_BROWSER_API_USB_USB_API_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "device/usb/usb_device.h"
 #include "device/usb/usb_device_filter.h"
 #include "device/usb/usb_device_handle.h"
 #include "extensions/browser/api/api_resource_manager.h"
-#include "extensions/browser/api/device_permissions_prompt.h"
 #include "extensions/browser/extension_function.h"
 #include "extensions/common/api/usb.h"
 #include "net/base/io_buffer.h"
 
 namespace extensions {
 
 class DevicePermissionEntry;
 class DevicePermissions;
+class DevicePermissionsPrompt;
 class DevicePermissionsManager;
 class UsbDeviceResource;
 
 class UsbPermissionCheckingFunction : public UIThreadExtensionFunction {
  protected:
   UsbPermissionCheckingFunction();
   ~UsbPermissionCheckingFunction() override;
 
   bool HasDevicePermission(scoped_refptr<device::UsbDevice> device);
   void RecordDeviceLastUsed();
@@ skipping 65 matching lines @@
   ResponseAction Run() override;
 
   void OnGetDevicesComplete(
       const std::vector<scoped_refptr<device::UsbDevice>>& devices);
 
   std::vector<device::UsbDeviceFilter> filters_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbGetDevicesFunction);
 };
 
-class UsbGetUserSelectedDevicesFunction
-    : public UIThreadExtensionFunction,
-      public DevicePermissionsPrompt::Delegate {
+class UsbGetUserSelectedDevicesFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("usb.getUserSelectedDevices",
                              USB_GETUSERSELECTEDDEVICES)
 
   UsbGetUserSelectedDevicesFunction();
 
  private:
   ~UsbGetUserSelectedDevicesFunction() override;
 
   // ExtensionFunction:
   ResponseAction Run() override;
 
-  void OnUsbDevicesChosen(
-      const std::vector<scoped_refptr<device::UsbDevice>>& devices) override;
+  void OnDevicesChosen(
+      const std::vector<scoped_refptr<device::UsbDevice>>& devices);
 
   scoped_ptr<DevicePermissionsPrompt> prompt_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbGetUserSelectedDevicesFunction);
 };
 
 class UsbRequestAccessFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("usb.requestAccess", USB_REQUESTACCESS)
 
@@ skipping 213 matching lines @@
 
   void OnComplete(bool success);
 
   scoped_ptr<extensions::core_api::usb::ResetDevice::Params> parameters_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbResetDeviceFunction);
 };
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_USB_USB_API_H_