Make some updates to BM bar for MD.

chrome/browser/ui/search/search_ui.cc

 // Copyright (c) 2012 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/ui/search/search_ui.h"
 
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/themes/theme_service.h"
+#include "ui/base/resource/material_design/material_design_controller.h"
 
 namespace chrome {
 
 SkColor GetDetachedBookmarkBarBackgroundColor(ThemeService* theme_service) {
   if (!theme_service->UsingDefaultTheme())
     return theme_service->GetColor(ThemeProperties::COLOR_TOOLBAR);
-  return SkColorSetARGB(0xFF, 0xF1, 0xF1, 0xF1);
+
+  return ui::MaterialDesignController::IsModeMaterial()
+             ? SK_ColorWHITE
+             : SkColorSetARGB(0xFF, 0xF1, 0xF1, 0xF1);
 }
 
 SkColor GetDetachedBookmarkBarSeparatorColor(ThemeService* theme_service) {
   if (theme_service->UsingDefaultTheme()) {
     return ThemeProperties::GetDefaultColor(
         ThemeProperties::COLOR_TOOLBAR_SEPARATOR);
   }
 
   // Use 50% of bookmark text color as separator color.
   return SkColorSetA(
       theme_service->GetColor(ThemeProperties::COLOR_BOOKMARK_TEXT), 128);
 }
 
 }  // namespace chrome