color: Add ColorCanvasExtensions runtime flag

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index fae4a33bc682b8e4ec8f4e6e39d428134bdb4a6b..6d75fedc7b68f0575db42728e79ff5e86c9c24cb 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -522,13 +522,12 @@ WebPreferences RenderViewHostImpl::ComputeWebkitPrefs() {
   prefs.main_frame_resizes_are_orientation_changes =
       command_line.HasSwitch(switches::kMainFrameResizesAreOrientationChanges);
 
+  prefs.color_canvas_extensions_enabled =
+      command_line.HasSwitch(switches::kEnableColorCanvasExtensions);
+
   prefs.color_correct_rendering_enabled =
       command_line.HasSwitch(switches::kEnableColorCorrectRendering);
 
-  prefs.color_correct_rendering_default_mode_enabled =
-      command_line.HasSwitch(
-          switches::kEnableColorCorrectRenderingDefaultMode);
-
   prefs.spatial_navigation_enabled = command_line.HasSwitch(
       switches::kEnableSpatialNavigation);