Extract renderer-side favicon downloading code into separate helper class

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index e63507bf8c06ff9dd2d7fb8639bd667b4cd1c688..1e56a8df6420f53e6c759bd3163fa1e57afa1596 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -43,6 +43,7 @@
 #include "chrome/renderer/extensions/miscellaneous_bindings.h"
 #include "chrome/renderer/extensions/resource_request_policy.h"
 #include "chrome/renderer/external_extension.h"
+#include "chrome/renderer/favicon_helper.h"
 #include "chrome/renderer/loadtimes_extension_bindings.h"
 #include "chrome/renderer/net/renderer_net_predictor.h"
 #include "chrome/renderer/page_click_tracker.h"
@@ -276,9 +277,10 @@ void ChromeContentRendererClient::RenderViewCreated(
   page_click_tracker->AddListener(autofill_agent);
 
   TranslateHelper* translate = new TranslateHelper(render_view);
+  FaviconHelper* favicon = new FaviconHelper(render_view);
   new ChromeRenderViewObserver(
       render_view, content_settings, chrome_observer_.get(),
-      extension_dispatcher_.get(), translate);
+      extension_dispatcher_.get(), translate, favicon);
 
   new PepperHelper(render_view);