[Mac] Refactor bookmark pulsing into BookmarkBubbleObserverCocoa.

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 39ef56b2d55f88c1951d99a7ab9d5792ef518639..8a870756dfbe3d620585ec66f883dc7811e2c823 100644
--- a/chrome/chrome_browser_ui.gypi
+++ b/chrome/chrome_browser_ui.gypi
@@ -128,6 +128,7 @@
       'browser/ui/bookmarks/bookmark_bar_constants.h',
       'browser/ui/bookmarks/bookmark_bar_instructions_delegate.h',
       'browser/ui/bookmarks/bookmark_bubble_delegate.h',
+      'browser/ui/bookmarks/bookmark_bubble_observer.h',
       'browser/ui/bookmarks/bookmark_editor.cc',
       'browser/ui/bookmarks/bookmark_editor.h',
       'browser/ui/bookmarks/bookmark_tab_helper.cc',
@@ -862,6 +863,8 @@
       'browser/ui/cocoa/bookmarks/bookmark_bar_view_cocoa.mm',
       'browser/ui/cocoa/bookmarks/bookmark_bubble_controller.h',
       'browser/ui/cocoa/bookmarks/bookmark_bubble_controller.mm',
+      'browser/ui/cocoa/bookmarks/bookmark_bubble_observer_cocoa.h',
+      'browser/ui/cocoa/bookmarks/bookmark_bubble_observer_cocoa.mm',
       'browser/ui/cocoa/bookmarks/bookmark_button.h',
       'browser/ui/cocoa/bookmarks/bookmark_button.mm',
       'browser/ui/cocoa/bookmarks/bookmark_button_cell.h',
@@ -2098,7 +2101,6 @@
       'browser/ui/views/bookmarks/bookmark_bar_view_observer.h',
       'browser/ui/views/bookmarks/bookmark_bubble_view.cc',
       'browser/ui/views/bookmarks/bookmark_bubble_view.h',
-      'browser/ui/views/bookmarks/bookmark_bubble_view_observer.h',
       'browser/ui/views/bookmarks/bookmark_context_menu.cc',
       'browser/ui/views/bookmarks/bookmark_context_menu.h',
       'browser/ui/views/bookmarks/bookmark_drag_drop_views.cc',