Attempt 2 at:

chrome/browser/views/tabs/side_tab.cc

 // Copyright (c) 2010 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/views/tabs/side_tab.h"
 
 #include "app/resource_bundle.h"
 #include "app/theme_provider.h"
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "gfx/canvas.h"
 #include "gfx/favicon_size.h"
 #include "gfx/path.h"
 #include "gfx/skia_util.h"
 #include "grit/app_resources.h"
-#include "grit/theme_resources.h"
 #include "views/controls/button/image_button.h"
 
 namespace {
 const int kVerticalTabHeight = 27;
 const int kTitleCloseSpacing = 4;
 const SkScalar kRoundRectRadius = 4;
 const SkColor kTabBackgroundColor = SK_ColorWHITE;
 const SkColor kTextColor = SK_ColorBLACK;
 const SkColor kPhantomTextColor = SK_ColorGRAY;
 
 // Padding between the edge and the icon.
 const int kIconLeftPadding = 5;
 
 // Location the title starts at.
 const int kTitleX = kIconLeftPadding + kFavIconSize + 5;
 
 // Alpha value phantom tab icons are rendered at.
 const int kPhantomTabIconAlpha = 100;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 // SideTab, public:
 
 SideTab::SideTab(TabController* controller)
-    : BaseTab(controller) {
-  ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-  close_button()->SetBackground(kTextColor,
-                                rb.GetBitmapNamed(IDR_TAB_CLOSE),
-                                rb.GetBitmapNamed(IDR_TAB_CLOSE_MASK));
+    : BaseTab(controller, false) {
+  SetCloseButtonColor(kTextColor);
 }
 
 SideTab::~SideTab() {
 }
 
 // static
 int SideTab::GetPreferredHeight() {
   return 27;
 }
 
@@ skipping 63 matching lines @@
   return gfx::Size(0, GetPreferredHeight());
 }
 
 bool SideTab::ShouldPaintHighlight() const {
   return IsSelected() || !controller();
 }
 
 bool SideTab::ShouldShowIcon() const {
   return data().mini || data().show_icon;
 }