Cleanup FaviconSQLHandler::Update

chrome/browser/history/thumbnail_database.h

Index: chrome/browser/history/thumbnail_database.h
diff --git a/chrome/browser/history/thumbnail_database.h b/chrome/browser/history/thumbnail_database.h
index f32ead1af23911e2d30fab0c7e76a4c7492e30d9..10a8198c9cfc810bbc70a8eff2d00e4358550ed6 100644
--- a/chrome/browser/history/thumbnail_database.h
+++ b/chrome/browser/history/thumbnail_database.h
@@ -149,12 +149,14 @@ class ThumbnailDatabase {
                         IconType* icon_type,
                         FaviconSizes* favicon_sizes);
 
-  // Adds favicon with |icon_url| and |icon_type| to the favicon db, returning
-  // its id.
-  FaviconID AddFavicon(const GURL& icon_url, IconType icon_type);
+  // Adds favicon with |icon_url|, |icon_type| and |favicon_sizes| to the
+  // favicon db, returning its id.
+  FaviconID AddFavicon(const GURL& icon_url,
+                       IconType icon_type,
+                       const FaviconSizes& favicon_sizes);
 
   // Adds a favicon with a single bitmap. This call is equivalent to calling
-  // AddFavicon, SetFaviconSizes, and AddFaviconBitmap.
+  // AddFavicon and AddFaviconBitmap.
   FaviconID AddFavicon(const GURL& icon_url,
                        IconType icon_type,
                        const FaviconSizes& favicon_sizes,
@@ -202,6 +204,10 @@ class ThumbnailDatabase {
   // Returns true if the deletion succeeded.
   bool DeleteIconMappings(const GURL& page_url);
 
+  // Deletes the icon mapping with |mapping_id|.
+  // Returns true if the deletion succeeded.
+  bool DeleteIconMapping(IconMappingID mapping_id);
+
   // Checks whether a favicon is used by any URLs in the database.
   bool HasMappingFor(FaviconID id);