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..7c67d0448517981c2a1eebcc2031d3a071c254db 100644
--- a/chrome/browser/history/history_types.cc
+++ b/chrome/browser/history/history_types.cc
@@ -416,11 +416,18 @@ FaviconImageResult::~FaviconImageResult() {
 
 const FaviconSizes& GetDefaultFaviconSizes() {
   CR_DEFINE_STATIC_LOCAL(FaviconSizes, kDefaultFaviconSizes, ());
-  if (kDefaultFaviconSizes.empty())
-    kDefaultFaviconSizes.push_back(gfx::Size());
   return kDefaultFaviconSizes;
 }
 
+// FaviconBitmapIDSize ---------------------------------------------------------
+
+FaviconBitmapIDSize::FaviconBitmapIDSize()
+    : bitmap_id(0) {
+}
+
+FaviconBitmapIDSize::~FaviconBitmapIDSize() {
+}
+
 // FaviconBitmap --------------------------------------------------------------
 
 FaviconBitmap::FaviconBitmap()