[Favicon] Add new fallback icon rendering flow.

chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.cc

Index: chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.cc
diff --git a/chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.cc b/chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.cc
index d55e8a76da877d3dec44aa397f6c77d0aed60d5e..36d5345dc9c5673f7cf73452c92f06f93382d0be 100644
--- a/chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.cc
+++ b/chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.h"
 
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/webui/fallback_icon_source.h"
 #include "chrome/browser/ui/webui/favicon_source.h"
 #include "chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui_handler.h"
 #include "chrome/common/url_constants.h"
@@ -27,6 +28,7 @@ SuggestionsInternalsUI::SuggestionsInternalsUI(content::WebUI* web_ui)
 
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, html_source);
+  content::URLDataSource::Add(profile, new FallbackIconSource());

[pkotwicz, 2015/01/21 19:44:15]

I don't think that this class is used for the NTP. If it isn't, then you should
probably not add FallbackIconSource.

[huangs, 2015/01/22 01:13:27]

Done.

   content::URLDataSource::Add(
       profile, new FaviconSource(profile, FaviconSource::FAVICON));