Add a per-tab preference to match WebSettings::images_enabled.

webkit/glue/webpreferences.cc

Index: webkit/glue/webpreferences.cc
diff --git a/webkit/glue/webpreferences.cc b/webkit/glue/webpreferences.cc
index 5d067dedac0d375c779a234292aa2639d285d525..dd0fa1826cdc59dd5d1c3f43cd25809ff8663d1b 100644
--- a/webkit/glue/webpreferences.cc
+++ b/webkit/glue/webpreferences.cc
@@ -42,6 +42,7 @@ WebPreferences::WebPreferences()
       web_security_enabled(true),
       javascript_can_open_windows_automatically(true),
       loads_images_automatically(true),
+      images_enabled(true),
       plugins_enabled(true),
       dom_paste_enabled(false),  // enables execCommand("paste")
       developer_extras_enabled(false),  // Requires extra work by embedder
@@ -190,6 +191,7 @@ void WebPreferences::Apply(WebView* web_view) const {
   settings->setJavaScriptCanOpenWindowsAutomatically(
       javascript_can_open_windows_automatically);
   settings->setLoadsImagesAutomatically(loads_images_automatically);
+  settings->setImagesEnabled(images_enabled);
   settings->setPluginsEnabled(plugins_enabled);
   settings->setDOMPasteAllowed(dom_paste_enabled);
   settings->setDeveloperExtrasEnabled(developer_extras_enabled);