[Local NTP] Fix chrome://large-icon fallback when no favicon is found.

components/favicon_base/favicon_types.cc

Index: components/favicon_base/favicon_types.cc
diff --git a/components/favicon_base/favicon_types.cc b/components/favicon_base/favicon_types.cc
index e69f1d7be53cb0b69d19d9eec26e503abf9615ae..2ed5eb062c694b23a689f31f42f1c936999f9004 100644
--- a/components/favicon_base/favicon_types.cc
+++ b/components/favicon_base/favicon_types.cc
@@ -27,7 +27,11 @@ FaviconRawBitmapResult::~FaviconRawBitmapResult() {}
 // --------------------------------------------------------
 // LargeIconResult
 
-LargeIconResult::LargeIconResult() {}
+LargeIconResult::LargeIconResult(const FaviconRawBitmapResult& bitmap_in)
+    : bitmap(bitmap_in) {}
+
+LargeIconResult::LargeIconResult(FallbackIconStyle* fallback_icon_style_in)
+    : fallback_icon_style(fallback_icon_style_in) {}
 
 LargeIconResult::~LargeIconResult() {}