Update device permissions dialog ui for Chrome apps and extensions

extensions/browser/api/usb/usb_apitest.cc

 // 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.
 
 #include <stddef.h>
 
 #include <numeric>
 
 #include "base/memory/ptr_util.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 89 matching lines @@
 
 class TestDevicePermissionsPrompt
     : public DevicePermissionsPrompt,
       public DevicePermissionsPrompt::Prompt::Observer {
  public:
   explicit TestDevicePermissionsPrompt(content::WebContents* web_contents)
       : DevicePermissionsPrompt(web_contents) {}
 
   void ShowDialog() override { prompt()->SetObserver(this); }
 
-  void OnDevicesChanged() override {
+  void OnDeviceAdded(size_t index, const base::string16& device_name) override {
+    OnDevicesChanged();
+  }
+
+  void OnDeviceRemoved(size_t index,
+                       const base::string16& device_name) override {
+    OnDevicesChanged();
+  }
+
+ private:
+  void OnDevicesChanged() {
     for (size_t i = 0; i < prompt()->GetDeviceCount(); ++i) {
       prompt()->GrantDevicePermission(i);
       if (!prompt()->multiple()) {
         break;
       }
     }
     prompt()->Dismissed();
   }
 };
 
@@ skipping 151 matching lines @@
 
   TestExtensionsAPIClient test_api_client;
   ASSERT_TRUE(LoadApp("api_test/usb/get_user_selected_devices"));
   ASSERT_TRUE(ready_listener.WaitUntilSatisfied());
 
   device_client_->usb_service()->RemoveDevice(mock_device_);
   ASSERT_TRUE(result_listener.WaitUntilSatisfied());
 }
 
 }  // namespace extensions