wip

chrome/browser/history/history_types.h

Index: chrome/browser/history/history_types.h
diff --git a/chrome/browser/history/history_types.h b/chrome/browser/history/history_types.h
index 97d8763956d79fb855d9568669ca78e5b226199f..e4709a4c4927a9fbe6d7d3483a13a9b98b186477 100644
--- a/chrome/browser/history/history_types.h
+++ b/chrome/browser/history/history_types.h
@@ -792,11 +792,17 @@ struct FaviconData {
   // Indicates whether the icon is known by the history backend.
   bool known_icon;
 
-  // The bits of bitmap.
-  scoped_refptr<base::RefCountedMemory> bitmap_data;
-
-  // The bitmap's pixel size, or 0 if the bitmap hasn't been resized.
-  gfx::Size pixel_size;
+  struct Variant {
+    Variant();
+    ~Variant();
+    // The bits of bitmap.
+    // XXX make this a gfx::Image?
+    scoped_refptr<base::RefCountedMemory> bitmap_data;
+
+    // The bitmap's pixel size, or 0 if the bitmap hasn't been resized.
+    gfx::Size pixel_size;
+  };
+  std::vector<Variant> variants;
 
   // Indicates whether image is expired.
   bool expired;