Allow Blob image src to be used as MediaNotification artwork

content/browser/media/session/media_metadata_sanitizer.cc

Index: content/browser/media/session/media_metadata_sanitizer.cc
diff --git a/content/browser/media/session/media_metadata_sanitizer.cc b/content/browser/media/session/media_metadata_sanitizer.cc
index 0a53baae79b9da9c9786546f5f566ab5b5807bbc..a3b75ac48dadf7154865f6edec12f448d3c5c610 100644
--- a/content/browser/media/session/media_metadata_sanitizer.cc
+++ b/content/browser/media/session/media_metadata_sanitizer.cc
@@ -32,7 +32,9 @@ const size_t kMaxNumberOfMediaImageSizes = 10;
 bool CheckMediaImageSrcSanity(const GURL& src) {
   if (!src.is_valid())
     return false;
-  if (!src.SchemeIsHTTPOrHTTPS() && !src.SchemeIs(url::kDataScheme))
+  if (!src.SchemeIsHTTPOrHTTPS() &&
+      !src.SchemeIs(url::kDataScheme) &&
+      !src.SchemeIs(url::kBlobScheme))
     return false;
   if (src.spec().size() > url::kMaxURLChars)
     return false;