Fix problem of white box appearing in themes without an NTP background image....

chrome/browser/dom_ui/dom_ui_theme_source.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/dom_ui/dom_ui_theme_source.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "app/theme_provider.h"
 #include "base/gfx/png_encoder.h"
@@ skipping 237 matching lines @@
   } else {
     SendResponse(request_id, NULL);
   }
 }
 
 std::string DOMUIThemeSource::GetNewTabBackgroundCSS(bool bar_attached) {
   int alignment;
   profile_->GetThemeProvider()->GetDisplayProperty(
       BrowserThemeProvider::NTP_BACKGROUND_ALIGNMENT, &alignment);
 
+  // TODO(glen): This is a quick workaround to hide the notused.png image when
+  // no image is provided - we don't have time right now to figure out why
+  // this is painting as white.
+  // http://crbug.com/17593
+  if (!profile_->GetThemeProvider()->HasCustomImage(IDR_THEME_NTP_BACKGROUND)) {
+    return "-64px";
+  }
+
   if (bar_attached)
     return BrowserThemeProvider::AlignmentToString(alignment);
 
   // The bar is detached, so we must offset the background by the bar size
   // if it's a top-aligned bar.
 #if defined(OS_WIN)
   int offset = BookmarkBarView::kNewtabBarHeight;
 #else
   int offset = 0;
 #endif
 
-  // TODO(glen): This is a quick workaround to hide the notused.png image when
-  // no image is provided - we don't have time right now to figure out why
-  // this is painting as white.
-  // http://crbug.com/17593
-  if (!profile_->GetThemeProvider()->HasCustomImage(IDR_THEME_NTP_BACKGROUND)) {
-    return "-64px";
-  }
-
   if (alignment & BrowserThemeProvider::ALIGN_TOP) {
     if (alignment & BrowserThemeProvider::ALIGN_LEFT)
       return "0% " + IntToString(-offset) + "px";
     else if (alignment & BrowserThemeProvider::ALIGN_RIGHT)
       return "100% " + IntToString(-offset) + "px";
     return "center " + IntToString(-offset) + "px";
   }
   return BrowserThemeProvider::AlignmentToString(alignment);
 }
 
 std::string DOMUIThemeSource::GetNewTabBackgroundTilingCSS() {
   int repeat_mode;
   profile_->GetThemeProvider()->GetDisplayProperty(
       BrowserThemeProvider::NTP_BACKGROUND_TILING, &repeat_mode);
   return BrowserThemeProvider::TilingToString(repeat_mode);
 }