Back out patch from Julien Rivaud in bug 416868 due to reftest failure.

toolkit/themes/gnomestripe/global/button.css

@@ -154,7 +154,12 @@ button[type="menu-button"] {
 
 .button-menu-dropmarker,
 .button-menubutton-dropmarker {
-  -moz-appearance: toolbarbutton-dropdown !important;
+  -moz-appearance: none !important;
+  margin: 1px;
+  background-color: transparent !important;
+  border: none !important;
+  min-width:11px;
+  min-height:11px;
 }
   
 .button-menubutton-dropmarker[open="true"] {

toolkit/themes/gnomestripe/global/dropmarker.css

@@ -1,3 +0,0 @@
-dropmarker {
-  -moz-appearance: menulist-button;
-}

toolkit/themes/gnomestripe/global/jar.mn

@@ -7,7 +7,6 @@ classic.jar:
 +  skin/classic/global/tabbox.css
 +  skin/classic/global/toolbar.css
 +  skin/classic/global/toolbarbutton.css
-+  skin/classic/global/dropmarker.css
 +  skin/classic/global/button.css
 +  skin/classic/global/checkbox.css
 +  skin/classic/global/splitter.css

toolkit/themes/gnomestripe/global/toolbarbutton.css

@@ -116,10 +116,12 @@ toolbarbutton[checked="true"]:hover:active {
 .toolbarbutton-menu-dropmarker {
   -moz-appearance: toolbarbutton-dropdown !important;
   list-style-image: none;
+  width: 13px;
+  height: 13px;
   border: none !important;
   background-color: transparent !important;
   padding: 0;
-  margin: 0;
+  margin: 2px;
 }
 
 .toolbarbutton-menu-dropmarker[disabled="true"] {
@@ -159,4 +161,11 @@ toolbarbutton[type="menu-button"][disabled="true"]:hover:active {
   padding: 3px;
   -moz-appearance: toolbarbutton-dropdown !important;
   list-style-image: none;
+  width: 12px;
+  height: 12px;
 }
+
+.toolbarbutton-menubutton-dropmarker[disabled="true"] {
+  padding: 3px !important;
+}
+

widget/src/gtk2/gtk2drawing.c

@@ -1638,8 +1638,10 @@ moz_gtk_downarrow_paint(GdkDrawable* drawable, GdkRectangle* rect,
     ensure_button_arrow_widget();
     style = gButtonArrowWidget->style;
 
-    calculate_arrow_rect(gButtonArrowWidget, rect, &arrow_rect,
-                         GTK_TEXT_DIR_LTR);
+    arrow_rect.x = rect->x + 1 + XTHICKNESS(style);
+    arrow_rect.y = rect->y + 1 + YTHICKNESS(style);
+    arrow_rect.width = MAX(1, rect->width - (arrow_rect.x - rect->x) * 2);
+    arrow_rect.height = MAX(1, rect->height - (arrow_rect.y - rect->y) * 2);
 
     TSOffsetStyleGCs(style, arrow_rect.x, arrow_rect.y);
     gtk_paint_arrow(style, drawable, state_type, shadow_type, cliprect,
@@ -2699,19 +2701,6 @@ moz_gtk_get_tab_scroll_arrow_size(gint* width, gint* height)
     return MOZ_GTK_SUCCESS;
 }
 
-gint
-moz_gtk_get_downarrow_size(gint* width, gint* height)
-{
-    GtkRequisition requisition;
-    ensure_button_arrow_widget();
-
-    gtk_widget_size_request(gButtonArrowWidget, &requisition);
-    *width = requisition.width;
-    *height = requisition.height;
-
-    return MOZ_GTK_SUCCESS;
-}
-
 gint
 moz_gtk_get_toolbar_separator_width(gint* size)
 {

widget/src/gtk2/gtkdrawing.h

@@ -352,15 +352,6 @@ gint moz_gtk_get_combo_box_entry_button_size(gint* width, gint* height);
  */
 gint moz_gtk_get_tab_scroll_arrow_size(gint* width, gint* height);
 
-/**
- * Get the desired size of a toolbar button dropdown arrow
- * width:   [OUT] the desired width
- * height:  [OUT] the desired height
- *
- * returns:    MOZ_GTK_SUCCESS if there was no error, an error code otherwise
- */
-gint moz_gtk_get_downarrow_size(gint* width, gint* height);
-
 /**
  * Get the desired size of a toolbar separator
  * size:    [OUT] the desired width

widget/src/gtk2/nsNativeThemeGTK.cpp

@@ -1116,12 +1116,7 @@ nsNativeThemeGTK::GetMinimumWidgetSize(nsIRenderingContext* aContext,
       *aIsOverridable = PR_FALSE;
     }
     break;
-  case NS_THEME_TOOLBAR_BUTTON_DROPDOWN:
-    {
-        moz_gtk_get_downarrow_size(&aResult->width, &aResult->height);
-        *aIsOverridable = PR_FALSE;
-    }
-    break;
+
   case NS_THEME_CHECKBOX_CONTAINER:
   case NS_THEME_RADIO_CONTAINER:
   case NS_THEME_CHECKBOX_LABEL: