Prompt for granting permission to access USB devices.

chrome/browser/ui/cocoa/extensions/device_permissions_dialog_controller.mm

Index: chrome/browser/ui/cocoa/extensions/device_permissions_dialog_controller.mm
diff --git a/chrome/browser/ui/cocoa/extensions/device_permissions_dialog_controller.mm b/chrome/browser/ui/cocoa/extensions/device_permissions_dialog_controller.mm
new file mode 100644
index 0000000000000000000000000000000000000000..5bf1d3f5b7486a3ced69dfb8e071d2b9bada0479
--- /dev/null
+++ b/chrome/browser/ui/cocoa/extensions/device_permissions_dialog_controller.mm
@@ -0,0 +1,79 @@
+// 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.
+
+#import "chrome/browser/ui/cocoa/extensions/device_permissions_dialog_controller.h"
+
+#include "base/bind.h"
+#include "base/location.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
+#import "chrome/browser/ui/cocoa/constrained_window/constrained_window_custom_sheet.h"
+#import "chrome/browser/ui/cocoa/constrained_window/constrained_window_custom_window.h"
+#import "chrome/browser/ui/cocoa/extensions/device_permissions_view_controller.h"
+#include "device/usb/usb_device.h"
+
+using extensions::DevicePermissionsPrompt;
+
+namespace {
+
+void ShowDevicePermissionsDialogImpl(
+    content::WebContents* web_contents,
+    DevicePermissionsPrompt::Delegate* delegate,
+    scoped_refptr<DevicePermissionsPrompt::Prompt> prompt) {
+  // These objects will delete themselves when the dialog closes.
+  new DevicePermissionsDialogController(web_contents, delegate, prompt);
+}
+
+}  // namespace
+
+DevicePermissionsDialogController::DevicePermissionsDialogController(
+    content::WebContents* web_contents,
+    DevicePermissionsPrompt::Delegate* delegate,
+    scoped_refptr<DevicePermissionsPrompt::Prompt> prompt)
+    : delegate_(delegate), prompt_(prompt) {
+  view_controller_.reset(
+      [[DevicePermissionsViewController alloc] initWithDelegate:this
+                                                         prompt:prompt]);
+
+  prompt_->SetObserver(this);
+
+  base::scoped_nsobject<NSWindow> window([[ConstrainedWindowCustomWindow alloc]
+      initWithContentRect:[[view_controller_ view] bounds]]);
+  [[window contentView] addSubview:[view_controller_ view]];
+
+  base::scoped_nsobject<CustomConstrainedWindowSheet> sheet(
+      [[CustomConstrainedWindowSheet alloc] initWithCustomWindow:window]);
+  constrained_window_.reset(
+      new ConstrainedWindowMac(this, web_contents, sheet));
+}
+
+DevicePermissionsDialogController::~DevicePermissionsDialogController() {
+  prompt_->SetObserver(nullptr);
+}
+
+void DevicePermissionsDialogController::OnUsbDevicesChosen(
+    const std::vector<scoped_refptr<device::UsbDevice>>& devices) {
+  delegate_->OnUsbDevicesChosen(devices);
+  delegate_ = nullptr;
+  constrained_window_->CloseWebContentsModalDialog();
+}
+
+void DevicePermissionsDialogController::OnDevicesChanged() {
+  [view_controller_ devicesChanged];
+}
+
+void DevicePermissionsDialogController::OnConstrainedWindowClosed(
+    ConstrainedWindowMac* window) {
+  if (delegate_) {
+    std::vector<scoped_refptr<device::UsbDevice>> empty;
+    delegate_->OnUsbDevicesChosen(empty);
+  }
+  base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, this);
+}
+
+// static
+DevicePermissionsPrompt::ShowDialogCallback
+DevicePermissionsPrompt::GetDefaultShowDialogCallback() {
+  return base::Bind(&ShowDevicePermissionsDialogImpl);
+}