Default state for the favicon view

ios/chrome/browser/ui/favicon/favicon_view.mm

Index: ios/chrome/browser/ui/favicon/favicon_view.mm
diff --git a/ios/chrome/browser/ui/favicon/favicon_view.mm b/ios/chrome/browser/ui/favicon/favicon_view.mm
index 3857c898e60d6173e79ae969983d20f701a0931c..9a5486f301fc6ff261cee8d05e7124c285dd9e4a 100644
--- a/ios/chrome/browser/ui/favicon/favicon_view.mm
+++ b/ios/chrome/browser/ui/favicon/favicon_view.mm
@@ -13,6 +13,8 @@
 namespace {
 // Default corner radius for the favicon image view.
 const CGFloat kDefaultCornerRadius = 3;
+// Percentage of white for the default background, when there is no attributes.
+const CGFloat kDefaultWhitePercentage = 0.47;
 }
 
 @interface FaviconViewNew () {
@@ -39,7 +41,8 @@ const CGFloat kDefaultCornerRadius = 3;
     _faviconImageView.image = nil;
 
     _faviconFallbackLabel = [[UILabel alloc] initWithFrame:self.bounds];
-    _faviconFallbackLabel.backgroundColor = [UIColor clearColor];
+    _faviconFallbackLabel.backgroundColor =
+        [UIColor colorWithWhite:kDefaultWhitePercentage alpha:1];
     _faviconFallbackLabel.textAlignment = NSTextAlignmentCenter;
     _faviconFallbackLabel.isAccessibilityElement = NO;
     _faviconFallbackLabel.clipsToBounds = YES;
@@ -62,6 +65,15 @@ const CGFloat kDefaultCornerRadius = 3;
 }
 
 - (void)configureWithAttributes:(FaviconAttributes*)attributes {
+  if (!attributes) {
+    self.faviconFallbackLabel.backgroundColor =
+        [UIColor colorWithWhite:kDefaultWhitePercentage alpha:1];
+    self.faviconFallbackLabel.text = nil;
+    self.faviconFallbackLabel.hidden = NO;
+    self.faviconImageView.hidden = YES;
+    return;
+  }
+
   if (attributes.faviconImage) {
     self.faviconImageView.image = attributes.faviconImage;
     self.faviconImageView.hidden = NO;