Delegating the "are images allowed" decision to renderer.

chrome/renderer/chrome_content_renderer_client.h

Index: chrome/renderer/chrome_content_renderer_client.h
diff --git a/chrome/renderer/chrome_content_renderer_client.h b/chrome/renderer/chrome_content_renderer_client.h
index 1b9073e957ce3fbec2eaacb91c12f31dd65d4b24..75783ab325490159a907dfc863361e9148c2c0a6 100644
--- a/chrome/renderer/chrome_content_renderer_client.h
+++ b/chrome/renderer/chrome_content_renderer_client.h
@@ -10,6 +10,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
+#include "chrome/common/content_settings.h"
 #include "content/renderer/content_renderer_client.h"
 
 class ChromeRenderProcessObserver;
@@ -84,6 +85,9 @@ class ChromeContentRendererClient : public content::ContentRendererClient {
                                       const GURL& first_party_for_cookies,
                                       const std::string& value) OVERRIDE;
 
+  void SetImageSettingRules(
+      const ContentSettingsForOneType& image_setting_rules);
+
   // For testing.
   void SetExtensionDispatcher(ExtensionDispatcher* extension_dispatcher);
 
@@ -124,6 +128,8 @@ class ChromeContentRendererClient : public content::ContentRendererClient {
   SpellCheckProvider* spellcheck_provider_;
   scoped_ptr<VisitedLinkSlave> visited_link_slave_;
   scoped_ptr<safe_browsing::PhishingClassifierFilter> phishing_classifier_;
+
+  ContentSettingsForOneType image_setting_rules_;
 };
 
 }  // namespace chrome