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 abe58cb1753bed76c23e983cac8f44f36c1113b5..3b67596434aa3ef94deb1fdc0ad7f863b638a7cc 100644
--- a/chrome/browser/history/history_types.cc
+++ b/chrome/browser/history/history_types.cc
@@ -439,7 +439,16 @@ FaviconData::FaviconData()
 FaviconData::~FaviconData() {}
 
 bool FaviconData::is_valid() {
-  return known_icon && image_data.get() && image_data->size();
+  return known_icon && bitmap_data.get() && bitmap_data->size();
+}
+
+// FaviconIDAndSize -----------------------------------------------------------
+
+FaviconIDAndSize::FaviconIDAndSize()
+    : icon_id(0) {
+}
+
+FaviconIDAndSize::~FaviconIDAndSize() {
 }
 
 }  // namespace history