GTK: Remove the global bookmarks menu. It can't be implemented efficiently.

chrome/browser/ui/gtk/global_history_menu.cc

 // Copyright (c) 2011 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/gtk/global_history_menu.h"
 
 #include <gtk/gtk.h>
 
 #include "base/stl_util-inl.h"
 #include "base/string_number_conversions.h"
@@ skipping 14 matching lines @@
 #include "content/common/notification_service.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/text/text_elider.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/gtk_util.h"
 
 namespace {
 
 // The maximum number of most visited items to display.
-const unsigned int kMostVisitedCount = 12;
+const unsigned int kMostVisitedCount = 8;
 
 // The number of recently closed items to get.
-const unsigned int kRecentlyClosedCount = 10;
+const unsigned int kRecentlyClosedCount = 8;
 
 // Menus more than this many chars long will get trimmed.
 const int kMaximumMenuWidthInChars = 50;
 
 }  // namespace
 
 struct GlobalHistoryMenu::ClearMenuClosure {
   GtkWidget* container;
   GlobalHistoryMenu* menu_bar;
   int tag;
@@ skipping 478 matching lines @@
       tab_restore_service_->LoadTabsFromLastSession();
       tab_restore_service_->AddObserver(this);
 
       // If LoadTabsFromLastSession doesn't load tabs, it won't call
       // TabRestoreServiceChanged(). This ensures that all new windows after
       // the first one will have their menus populated correctly.
       TabRestoreServiceChanged(tab_restore_service_);
     }
   }
 }