Index: common/webpreferences.cc
===================================================================
--- common/webpreferences.cc	(revision 258314)
+++ common/webpreferences.cc	(working copy)
@@ -123,6 +123,7 @@
       pinch_overlay_scrollbar_thickness(0),
       use_solid_color_scrollbars(false),
       compositor_touch_hit_testing(true),
+      base_background_color(0xFFFFFFFF),  // Color::white
       cookie_enabled(true)
 #if defined(OS_ANDROID)
       ,
Index: common/webpreferences.h
===================================================================
--- common/webpreferences.h	(revision 258314)
+++ common/webpreferences.h	(working copy)
@@ -158,6 +158,7 @@
   int pinch_overlay_scrollbar_thickness;
   bool use_solid_color_scrollbars;
   bool compositor_touch_hit_testing;
+  int base_background_color;
 
   // This flags corresponds to a Page's Settings' setCookieEnabled state. It
   // only controls whether or not the "document.cookie" field is properly