Refactor Permissions related method out of ContentBrowserClient.

content/shell/browser/layout_test/layout_test_permission_manager.cc

+// Copyright 2015 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 "content/shell/browser/layout_test/layout_test_permission_manager.h"
+
+#include "base/bind.h"
+#include "base/callback.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/permission_type.h"
+#include "content/shell/browser/layout_test/layout_test_content_browser_client.h"
+#include "content/shell/browser/layout_test/layout_test_notification_manager.h"
+#include "url/gurl.h"
+
+namespace content {
+
+namespace {
+
+void RequestDesktopNotificationPermissionOnIO(
+    const GURL& origin,
+    const base::Callback<void(PermissionStatus)>& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  LayoutTestNotificationManager* manager =
+      LayoutTestContentBrowserClient::Get()->GetLayoutTestNotificationManager();
+  PermissionStatus result = manager ? manager->RequestPermission(origin)
+                                    : PERMISSION_STATUS_GRANTED;
+
+  // The callback came from the UI thread, we need to run it from there again.
+  BrowserThread::PostTask(
+      BrowserThread::UI,
+      FROM_HERE,
+      base::Bind(callback, result));
+}
+
+}  // anonymous namespace
+
+LayoutTestPermissionManager::LayoutTestPermissionManager()
+    : ShellPermissionManager() {
+}
+
+LayoutTestPermissionManager::~LayoutTestPermissionManager() {
+}
+
+void LayoutTestPermissionManager::RequestPermission(
+    PermissionType permission,
+    WebContents* web_contents,
+    int request_id,
+    const GURL& requesting_origin,
+    bool user_gesture,
+    const base::Callback<void(PermissionStatus)>& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  if (permission == PermissionType::NOTIFICATIONS) {
+    BrowserThread::PostTask(
+        BrowserThread::IO,
+        FROM_HERE,
+        base::Bind(&RequestDesktopNotificationPermissionOnIO,
+                   requesting_origin,
+                   callback));
+    return;
+  }
+
+  ShellPermissionManager::RequestPermission(permission,
+                                            web_contents,
+                                            request_id,
+                                            requesting_origin,
+                                            user_gesture,
+                                            callback);
+}
+
+}  // namespace content