Control spacing of toolbar elements with pixels rather than " " GtkLabels....

chrome/browser/gtk/browser_toolbar_gtk.h

Index: chrome/browser/gtk/browser_toolbar_gtk.h
===================================================================
--- chrome/browser/gtk/browser_toolbar_gtk.h	(revision 16898)
+++ chrome/browser/gtk/browser_toolbar_gtk.h	(working copy)
@@ -77,11 +77,14 @@
 
  private:
   // Builds a toolbar button with all the properties set.
+  // |spacing| is the width of padding (in pixels) on the left and right of the
+  // button.
   CustomDrawButton* BuildToolbarButton(int normal_id,
                                        int active_id,
                                        int highlight_id,
                                        int depressed_id,
-                                       const std::string& localized_tooltip);
+                                       const std::string& localized_tooltip,
+                                       int spacing);
 
   ToolbarStarToggleGtk* BuildStarButton(const std::string& localized_tooltip);