Fix FullscreenController tests with simplified-fullscreen-ui flag.

chrome/browser/ui/exclusive_access/mouse_lock_controller.h

 // Copyright (c) 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.
 
 #ifndef CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_MOUSE_LOCK_CONTROLLER_H_
 #define CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_MOUSE_LOCK_CONTROLLER_H_
 
 #include "base/macros.h"
 #include "chrome/browser/ui/exclusive_access/exclusive_access_controller_base.h"
 #include "components/content_settings/core/common/content_settings.h"
@@ skipping 17 matching lines @@
 
   void ExitExclusiveAccessToPreviousState() override;
   bool OnAcceptExclusiveAccessPermission() override;
   bool OnDenyExclusiveAccessPermission() override;
 
   // Called by Browser::LostMouseLock.
   void LostMouseLock();
 
   void UnlockMouse();
 
+  // If true, does not call into the WebContents to lock the mouse. Just assumes
+  // that it works. This may be necessary when calling
+  // Browser::RequestToLockMouse in tests, because the proper signal will not
+  // have been passed to the RenderViewHost.
+  void set_fake_mouse_lock_for_test(bool value) {
+    fake_mouse_lock_for_test_ = value;
+  }
+
  private:
   enum MouseLockState {
     MOUSELOCK_NOT_REQUESTED,
     // The page requests to lock the mouse and the user hasn't responded to the
     // request.
     MOUSELOCK_REQUESTED,
     // Mouse lock has been allowed by the user.
     MOUSELOCK_ACCEPTED,
     // Mouse lock has been silently accepted, no notification to user.
     MOUSELOCK_ACCEPTED_SILENTLY
   };
 
   void NotifyMouseLockChange();
 
   void ExitExclusiveAccessIfNecessary() override;
   void NotifyTabExclusiveAccessLost() override;
 
   ContentSetting GetMouseLockSetting(const GURL& url) const;
 
   MouseLockState mouse_lock_state_;
 
+  bool fake_mouse_lock_for_test_;
+
   DISALLOW_COPY_AND_ASSIGN(MouseLockController);
 };
 
 #endif  //  CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_MOUSE_LOCK_CONTROLLER_H_