Adds support for saving favicon size into history database.

chrome/browser/history/history_types.cc

Index: chrome/browser/history/history_types.cc
diff --git a/chrome/browser/history/history_types.cc b/chrome/browser/history/history_types.cc
index 3a8f585d29bbdc516b39e89de962513e75154e78..cacb69894725b9f30a99bb05e7093ed2cc571042 100644
--- a/chrome/browser/history/history_types.cc
+++ b/chrome/browser/history/history_types.cc
@@ -421,11 +421,18 @@ const FaviconSizes& GetDefaultFaviconSizes() {
   return kDefaultFaviconSizes;
 }
 
-// FaviconBitmap --------------------------------------------------------------
+// FaviconBitmapIDSize ---------------------------------------------------------
 
-FaviconBitmap::FaviconBitmap()
-    : bitmap_id(0),
-      icon_id(0) {
+FaviconBitmapIDSize::FaviconBitmapIDSize()
+    : bitmap_id(0) {
+}
+
+FaviconBitmapIDSize::~FaviconBitmapIDSize() {
+}
+
+// FaviconBitmap ---------------------------------------------------------------
+
+FaviconBitmap::FaviconBitmap() {
 }
 
 FaviconBitmap::~FaviconBitmap() {