Add --enable-true-color-rendering flag

content/public/common/web_preferences.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_
 #define CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 153 matching lines @@
   // TODO(mustaq): Nuke when the new API is ready
   bool device_supports_mouse;
   bool touch_adjustment_enabled;
   int pointer_events_max_touch_points;
   int available_pointer_types;
   ui::PointerType primary_pointer_type;
   int available_hover_types;
   ui::HoverType primary_hover_type;
   bool sync_xhr_in_documents_enabled;
   bool color_correct_rendering_enabled = false;
+  bool true_color_rendering_enabled = false;
   bool should_respect_image_orientation;
   int number_of_cpu_cores;
   EditingBehavior editing_behavior;
   bool supports_multiple_windows;
   bool viewport_enabled;
   bool viewport_meta_enabled;
   bool shrinks_viewport_contents_to_fit;
   ViewportStyle viewport_style;
   bool always_show_context_menu_on_touch;
   bool main_frame_resizes_are_orientation_changes;
@@ skipping 84 matching lines @@
   // chrome, except for the cases where it would require lots of extra work for
   // the embedder to use the same default value.
   WebPreferences();
   WebPreferences(const WebPreferences& other);
   ~WebPreferences();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_