DialogBrowserTest implementation to invoke Content settings bubble dialogs.

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm

 // Copyright 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.
 
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
 
 #include "base/bind.h"
 #import "base/mac/mac_util.h"
 #include "base/memory/ptr_util.h"
 #include "base/stl_util.h"
@@ skipping 314 matching lines @@
       ++current;
     }
   }
 }
 
 bool LocationBarViewMac::GetBookmarkStarVisibility() {
   DCHECK(star_decoration_.get());
   return star_decoration_->IsVisible();
 }
 
+int LocationBarViewMac::ContentSettingImageModelCount() {
+  return 0;
+}
+
+ContentSettingImageModel* LocationBarViewMac::GetContentSettingImageModel(
+    size_t index) {
+  return nullptr;
+}
+
 void LocationBarViewMac::SetEditable(bool editable) {
   [field_ setEditable:editable ? YES : NO];
   UpdateBookmarkStarVisibility();
   UpdateZoomDecoration(/*default_zoom_changed=*/false);
   UpdatePageActions();
   Layout();
 }
 
 bool LocationBarViewMac::IsEditable() {
   return [field_ isEditable] ? true : false;
@@ skipping 600 matching lines @@
     OnDecorationsChanged();
 }
 
 std::vector<NSView*> LocationBarViewMac::GetDecorationAccessibilityViews() {
   std::vector<LocationBarDecoration*> decorations = GetDecorations();
   std::vector<NSView*> views;
   for (auto* decoration : decorations)
     views.push_back(decoration->GetAccessibilityView());
   return views;
 }