Extend FaviconService to support fetching favicons from a Google server

components/favicon_base/favicon_types.h

Index: components/favicon_base/favicon_types.h
diff --git a/components/favicon_base/favicon_types.h b/components/favicon_base/favicon_types.h
index 6a399cefe0ebb4e03e6000ea79e6480a60862805..02f84b685e0a625c5ec1ae19577e247528b49bca 100644
--- a/components/favicon_base/favicon_types.h
+++ b/components/favicon_base/favicon_types.h
@@ -68,6 +68,10 @@ struct FaviconRawBitmapResult {
   // The pixel dimensions of |bitmap_data|.
   gfx::Size pixel_size;
 
+  // The pixel dimensions of the bitmap before it was resized to the desired
+  // size.

[pkotwicz, 2016/12/19 00:03:29]

How about: "The pixel dimensions of the bitmap stored in the database. Icons are
resized prior to storing into the database so the dimensions are different than
those of the bitmap at |icon_url|. The dimensions are taken prior to the
resizing in FaviconService::Get###()."

[jkrcal, 2016/12/19 17:07:19]

Done.

+  gfx::Size pixel_size_in_db;
+
   // The URL of the containing favicon.
   GURL icon_url;