Introduce AppsClient and use it in apps to get the loaded profiles list.

chrome/browser/apps/web_view_interactive_browsertest.cc

 // Copyright 2013 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 "apps/shell_window.h"
 #include "apps/shell_window_registry.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
+#include "chrome/browser/profiles/profile.h"
 #include "chrome/test/base/interactive_test_utils.h"
 #include "chrome/test/base/test_launcher_utils.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
 #include "content/public/common/content_switches.h"
@@ skipping 660 matching lines @@
   ASSERT_TRUE(done_listener.WaitUntilSatisfied());
 }
 
 IN_PROC_BROWSER_TEST_F(WebViewInteractiveTest,
                        PointerLock_PointerLockLostWithFocus) {
   TestHelper("testPointerLockLostWithFocus",
              "DonePointerLockTest.PASSED",
              "DonePointerLockTest.FAILED",
              "web_view/pointerlock");
 }