Find Favicon in priority of icon_type.

chrome/browser/favicon/favicon_service.h

Index: chrome/browser/favicon/favicon_service.h
diff --git a/chrome/browser/favicon/favicon_service.h b/chrome/browser/favicon/favicon_service.h
index 692a6ebe74e1d570670da09befcfc51ec8658a50..58deaa849faf58421eb082977ea8c579d9de1892 100644
--- a/chrome/browser/favicon/favicon_service.h
+++ b/chrome/browser/favicon/favicon_service.h
@@ -172,6 +172,15 @@ class FaviconService : public CancelableRequestProvider,
       const FaviconRawCallback& callback,
       CancelableTaskTracker* tracker);
 
+  // See history::HistoryService::GetLargestFaviconForURL.
+  CancelableTaskTracker::TaskId GetLargestRawFaviconForURL(
+      Profile* profile,
+      const GURL& page_url,
+      const std::vector<int>& icon_types,
+      int minimal_size_in_pixels,
+      const FaviconRawCallback& callback,
+      CancelableTaskTracker* tracker);
+
   CancelableTaskTracker::TaskId GetFaviconForURL(
       const FaviconForURLParams& params,
       const FaviconResultsCallback& callback,
@@ -246,6 +255,14 @@ class FaviconService : public CancelableRequestProvider,
       const FaviconResultsCallback& callback,
       CancelableTaskTracker* tracker);
 
+  CancelableTaskTracker::TaskId GetLargestRawFaviconForURLImpl(
+      Profile* profile,
+      const GURL& page_url,
+      const std::vector<int>& icon_types,
+      int minimal_size_in_pixels,
+      const FaviconResultsCallback& callback,
+      CancelableTaskTracker* tracker);
+
   // Intermediate callback for GetFaviconImage() and GetFaviconImageForURL()
   // so that history service can deal solely with FaviconResultsCallback.
   // Builds chrome::FaviconImageResult from |favicon_bitmap_results| and runs