[Extension Toolbar] Slide out overflowed actions for popups

chrome/browser/ui/cocoa/extensions/browser_action_test_util_mac.mm

 // Copyright (c) 2009 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/extensions/browser_action_test_util.h"
 
 #include "base/mac/bundle_locations.h"
 #include "base/mac/foundation_util.h"
 #include "base/path_service.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 139 matching lines @@
   return
       [GetButton(browser_, test_helper_.get(), index) viewController]->GetId();
 }
 
 std::string BrowserActionTestUtil::GetTooltip(int index) {
   NSString* tooltip = [GetButton(browser_, test_helper_.get(), index) toolTip];
   return base::SysNSStringToUTF8(tooltip);
 }
 
 gfx::NativeView BrowserActionTestUtil::GetPopupNativeView() {
-  return [[ExtensionPopupController popup] view];
+  ToolbarActionViewController* popup_owner =
+      GetToolbarActionsBar()->popup_owner();
+  return popup_owner ? popup_owner->GetPopupNativeView() : nullptr;
 }
 
 bool BrowserActionTestUtil::HasPopup() {
-  return [ExtensionPopupController popup] != nil;
+  return GetPopupNativeView() != nullptr;
 }
 
 gfx::Size BrowserActionTestUtil::GetPopupSize() {
   NSRect bounds = [[[ExtensionPopupController popup] view] bounds];
   return gfx::Size(NSSizeToCGSize(bounds.size));
 }
 
 bool BrowserActionTestUtil::HidePopup() {
   ExtensionPopupController* controller = [ExtensionPopupController popup];
   // The window must be gone or we'll fail a unit test with windows left open.
@@ skipping 48 matching lines @@
 gfx::Size BrowserActionTestUtil::GetMaxPopupSize() {
   return gfx::Size(NSSizeToCGSize([ExtensionPopupController maxPopupSize]));
 }
 
 BrowserActionTestUtil::BrowserActionTestUtil(Browser* browser,
                                              BrowserActionTestUtil* main_bar)
     : browser_(browser),
       test_helper_(new TestToolbarActionsBarHelperCocoa(
           browser_, GetController(browser_, main_bar->test_helper_.get()))) {
 }