Update ConstrainedWindowViews appearance according to mock

chrome/browser/ui/cocoa/browser_window_cocoa.mm

 // Copyright (c) 2012 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/cocoa/browser_window_cocoa.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
@@ skipping 580 matching lines @@
 FindBar* BrowserWindowCocoa::CreateFindBar() {
   // We could push the AddFindBar() call into the FindBarBridge
   // constructor or the FindBarCocoaController init, but that makes
   // unit testing difficult, since we would also require a
   // BrowserWindow object.
   FindBarBridge* bridge = new FindBarBridge();
   AddFindBar(bridge->find_bar_cocoa_controller());
   return bridge;
 }
 
+int BrowserWindowCocoa::GetConstrainedWindowTopY() {
+  return -1;
+}
+
 void BrowserWindowCocoa::Observe(int type,
                                  const content::NotificationSource& source,
                                  const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_PREF_CHANGED: {
       const std::string& pref_name =
           *content::Details<std::string>(details).ptr();
       DCHECK(pref_name == prefs::kShowBookmarkBar);
       [controller_ updateBookmarkBarVisibilityWithAnimation:YES];
       break;
@@ skipping 30 matching lines @@
   AvatarMenuBubbleController* menu =
       [[AvatarMenuBubbleController alloc] initWithBrowser:browser_
                                                anchoredAt:point];
   [[menu bubble] setAlignment:info_bubble::kAlignEdgeToAnchorEdge];
   [menu showWindow:nil];
 }
 
 void BrowserWindowCocoa::ShowAvatarBubbleFromAvatarButton() {
   [[controller_ avatarButtonController] showAvatarBubble];
 }