Refactor away the Browser* dependency in exclusive_access

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 "chrome/browser/ui/exclusive_access/exclusive_access_controller_base.h"
 #include "components/content_settings/core/common/content_settings.h"
 
 // This class implements mouselock behavior.
 class MouseLockController : public ExclusiveAccessControllerBase {
  public:
-  MouseLockController(ExclusiveAccessManager* manager, Browser* browser);
+  explicit MouseLockController(ExclusiveAccessManager* manager);
   ~MouseLockController() override;
 
   bool IsMouseLocked() const;
   bool IsMouseLockSilentlyAccepted() const;
   bool IsMouseLockRequested() const;
 
   void RequestToLockMouse(content::WebContents* web_contents,
                           bool user_gesture,
                           bool last_unlocked_by_target);
 
@@ skipping 27 matching lines @@
   void NotifyTabExclusiveAccessLost() override;
 
   ContentSetting GetMouseLockSetting(const GURL& url) const;
 
   MouseLockState mouse_lock_state_;
 
   DISALLOW_COPY_AND_ASSIGN(MouseLockController);
 };
 
 #endif  //  CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_MOUSE_LOCK_CONTROLLER_H_