Don't try to paint tabs if there are no tabs to paint.

chrome/browser/gtk/tab_strip_gtk.cc

 // Copyright (c) 2009 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/gtk/tab_strip_gtk.h"
 
 #include "base/gfx/gtk_util.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/l10n_util.h"
@@ skipping 408 matching lines @@
   // TODO(jhawkins): Move the Layout call out of OnExpose and into methods
   // that actually affect the layout.
   tabstrip->Layout();
 
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   GdkPixbuf* background = rb.LoadPixbuf(IDR_WINDOW_TOP_CENTER);
   tabstrip->TileImageInt(background, 0, 0,
                          tabstrip->tabstrip_.get()->allocation.width,
                          tabstrip->tabstrip_.get()->allocation.height);
 
+  if (model->count() == 0)
+    return TRUE;
+
   for (int i = 0; i < model->count(); i++) {
     if (i != selected) {
       tabstrip->PaintTab(i, false);
     }
   }
 
   tabstrip->PaintTab(selected, true);
 
   return TRUE;
 }
@@ skipping 49 matching lines @@
 
   LoadTabImages();
 
   // TODO(jhawkins): Move this into ChromeFont.  Also, my default gtk font
   // is really ugly compared to the other fonts being used in the UI.
   title_font_ = load_default_font();
   DCHECK(title_font_);
   title_font_height_ = gdk_char_height(title_font_, 'X');
   initialized_ = true;
 }