Try and force the font size for the bookmarks bar and some hint

chrome/browser/gtk/bookmark_utils_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/bookmark_utils_gtk.h"
 
 #include "app/gtk_dnd_util.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/pickle.h"
@@ skipping 106 matching lines @@
                                                        provider->UseGtkTheme());
   GtkWidget* image = gtk_image_new_from_pixbuf(pixbuf);
   g_object_unref(pixbuf);
 
   GtkWidget* box = gtk_hbox_new(FALSE, kBarButtonPadding);
   gtk_box_pack_start(GTK_BOX(box), image, FALSE, FALSE, 0);
 
   std::string label_string = WideToUTF8(node->GetTitle());
   if (!label_string.empty()) {
     GtkWidget* label = gtk_label_new(label_string.c_str());
+    // Until we switch to vector graphics, force the font size.
+    gtk_util::ForceFontSizePixels(label, 13.4);  // 13.4px == 10pt @ 96dpi
 
     // Ellipsize long bookmark names.
     if (node != model->other_node()) {
       gtk_label_set_max_width_chars(GTK_LABEL(label), kMaxCharsOnAButton);
       gtk_label_set_ellipsize(GTK_LABEL(label), PANGO_ELLIPSIZE_END);
     }
 
     gtk_box_pack_start(GTK_BOX(box), label, FALSE, FALSE, 0);
     SetButtonTextColors(label, provider);
   }
@@ skipping 189 matching lines @@
   std::vector<GURL> urls;
   gtk_dnd_util::ExtractURIList(selection_data, &urls);
   for (size_t i = 0; i < urls.size(); ++i) {
     std::string title = GetNameForURL(urls[i]);
     model->AddURL(parent, idx++, UTF8ToWide(title), urls[i]);
   }
   return true;
 }
 
 }  // namespace bookmark_utils