Use MacViews for ContentSettingBubbles.

chrome/chrome_browser_ui.gypi

Index: chrome/chrome_browser_ui.gypi
diff --git a/chrome/chrome_browser_ui.gypi b/chrome/chrome_browser_ui.gypi
index 1bb44e177955d6920d8873043cf9c08e30d70e0a..770875ea1dade71956cab38d9bc3e296f75b41a3 100644
--- a/chrome/chrome_browser_ui.gypi
+++ b/chrome/chrome_browser_ui.gypi
@@ -1093,6 +1093,8 @@
       'browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm',
       'browser/ui/cocoa/location_bar/bubble_decoration.h',
       'browser/ui/cocoa/location_bar/bubble_decoration.mm',
+      'browser/ui/cocoa/location_bar/content_setting_bubble_views_mac.h',
+      'browser/ui/cocoa/location_bar/content_setting_bubble_views_mac.mm',
       'browser/ui/cocoa/location_bar/content_setting_decoration.h',
       'browser/ui/cocoa/location_bar/content_setting_decoration.mm',
       'browser/ui/cocoa/location_bar/ev_bubble_decoration.h',
@@ -2084,6 +2086,8 @@
       'browser/ui/views/chrome_views_delegate.h',
       'browser/ui/views/collected_cookies_views.cc',
       'browser/ui/views/collected_cookies_views.h',
+      'browser/ui/views/content_setting_bubble_contents.cc',
+      'browser/ui/views/content_setting_bubble_contents.h',
       'browser/ui/views/cookie_info_view.cc',
       'browser/ui/views/cookie_info_view.h',
       'browser/ui/views/extensions/extension_keybinding_registry_views.cc',
@@ -2196,8 +2200,6 @@
       'browser/ui/views/conflicting_module_view_win.cc',
       'browser/ui/views/conflicting_module_view_win.h',
       'browser/ui/views/constrained_web_dialog_delegate_views.cc',
-      'browser/ui/views/content_setting_bubble_contents.cc',
-      'browser/ui/views/content_setting_bubble_contents.h',
       'browser/ui/views/create_application_shortcut_view.cc',
       'browser/ui/views/create_application_shortcut_view.h',
       'browser/ui/views/critical_notification_bubble_view.cc',