MacViews: Get chrome/browser/ui/views/frame to compile

chrome/browser/ui/views/frame/immersive_mode_controller.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 "chrome/browser/ui/views/frame/immersive_mode_controller.h"
 
+ImmersiveRevealedLock::ImmersiveRevealedLock() {
+}
+
+ImmersiveRevealedLock::~ImmersiveRevealedLock() {
+}
+
 ImmersiveModeController::ImmersiveModeController() {
 }
 
 ImmersiveModeController::~ImmersiveModeController() {
   FOR_EACH_OBSERVER(Observer, observers_, OnImmersiveModeControllerDestroyed());
 }
 
 void ImmersiveModeController::AddObserver(Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void ImmersiveModeController::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }