Mac: Add a shortcut to open the Apps page from the bookmark bar.

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_bridge.h

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_bar_bridge.h
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_bridge.h b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_bridge.h
index a473c88541a517d8474180e936b0b5edb9fc7cfe..3a51ca8c13eba1756406cd3e16420f16ef5c5346 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_bridge.h
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_bridge.h
@@ -13,6 +13,7 @@
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/prefs/public/pref_change_registrar.h"
 #include "chrome/browser/bookmarks/bookmark_model_observer.h"
 
 class Browser;
@@ -20,7 +21,8 @@ class Browser;
 
 class BookmarkBarBridge : public BookmarkModelObserver {
  public:
-  BookmarkBarBridge(BookmarkBarController* controller,
+  BookmarkBarBridge(Browser* browser,
+                    BookmarkBarController* controller,
                     BookmarkModel* model);
   virtual ~BookmarkBarBridge();
 
@@ -53,6 +55,12 @@ class BookmarkBarBridge : public BookmarkModelObserver {
   BookmarkModel* model_;  // weak; it is owned by a Profile.
   bool batch_mode_;
 
+  // Needed to react to kShowAppsShortcutInBookmarkBar changes.
+  PrefChangeRegistrar profile_pref_registrar_;
+
+  // Updates the visibility of the apps shortcut based on the pref value.
+  void OnAppsPageShortcutVisibilityChanged();
+
   DISALLOW_COPY_AND_ASSIGN(BookmarkBarBridge);
 };