[Mac] The infobar's top arrow should be hidden while the omnibox popup is shown

chrome/browser/ui/infobar_container_delegate.cc

 // Copyright 2014 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/infobar_container_delegate.h"
 
 #include "build/build_config.h"
 #include "ui/base/material_design/material_design_controller.h"
 #include "ui/gfx/animation/slide_animation.h"
 
@@ skipping 52 matching lines @@
 
 void InfoBarContainerDelegate::SetMaxTopArrowHeight(
     int height,
     infobars::InfoBarContainer* container) {
   top_arrow_target_height_ =
       std::min(std::max(height - GetSeparatorLineHeightForLayout(), 0),
                kMaximumArrowTargetHeight);
   container->UpdateInfoBarArrowTargetHeights();
 }
 
+int InfoBarContainerDelegate::DefaultMaxTopArrowHeight() const {
+  return GetDefaultArrowTargetHeight();
+}
+
 int InfoBarContainerDelegate::ArrowTargetHeightForInfoBar(
     size_t index,
     const gfx::SlideAnimation& animation) const {
   if (!DrawInfoBarArrows(nullptr))
     return 0;
   if (index == 0)
     return top_arrow_target_height_;
   if ((index > 1) || animation.IsShowing())
     return GetDefaultArrowTargetHeight();
   // When the first infobar is animating closed, we animate the second infobar's
@@ skipping 40 matching lines @@
   if (*arrow_height && !ui::MaterialDesignController::IsModeMaterial())
     *arrow_height += GetSeparatorLineHeightForLayout();
 
   int target_height = bar_target_height != -1
                           ? bar_target_height
                           : ui::MaterialDesignController::IsModeMaterial()
                                 ? kDefaultBarTargetHeightMd
                                 : kDefaultBarTargetHeight;
   *bar_height = animation.CurrentValueBetween(0, target_height);
 }