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

chrome/common/pref_names.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/common/pref_names.h"
 
 #include "base/basictypes.h"
 
 namespace prefs {
 
@@ skipping 219 matching lines @@
 const char kWebKitDefaultFixedFontSize[] =
     "webkit.webprefs.default_fixed_font_size";
 const char kWebKitMinimumFontSize[] = "webkit.webprefs.minimum_font_size";
 const char kWebKitMinimumLogicalFontSize[] =
     "webkit.webprefs.minimum_logical_font_size";
 const char kWebKitJavascriptEnabled[] = "webkit.webprefs.javascript_enabled";
 const char kWebKitJavascriptCanOpenWindowsAutomatically[] =
     "webkit.webprefs.javascript_can_open_windows_automatically";
 const char kWebKitLoadsImagesAutomatically[] =
     "webkit.webprefs.loads_images_automatically";
+const char kWebKitImagesEnabled[] =
+    "webkit.webprefs.images_enabled";
 const char kWebKitPluginsEnabled[] = "webkit.webprefs.plugins_enabled";
 
 // Boolean which specifies whether the bookmark bar is visible on all tabs.
 const char kShowBookmarkBar[] = "bookmark_bar.show_on_all_tabs";
 
 // Boolean which specifies the ids of the bookmark nodes that are expanded in
 // the bookmark editor.
 const char kBookmarkEditorExpandedNodes[] = "bookmark_editor.expanded_nodes";
 
 // Boolean that is true if the password manager is on (will record new
@@ skipping 1473 matching lines @@
 // String that stores the component updater last known state. This is used for
 // troubleshooting.
 const char kComponentUpdaterState[] = "component_updater.state";
 
 // Set to true if Protector should be enabled.
 // TODO(ivankr): This is a temporary solution for testing and will be removed
 // soon.
 const char kProtectorEnabled[] = "protector.enabled";
 
 }  // namespace prefs