Allow Blob image src to be used as MediaNotification artwork

third_party/WebKit/Source/modules/mediasession/MediaMetadataSanitizer.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/mediasession/MediaMetadataSanitizer.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "modules/mediasession/MediaImage.h"
 #include "modules/mediasession/MediaMetadata.h"
@@ skipping 21 matching lines @@
 
 // Maximum of sizes in a MediaImage.
 const size_t kMaxNumberOfImageSizes = 10;
 
 bool checkMediaImageSrcSanity(const KURL& src, ExecutionContext* context) {
   // Console warning for invalid src is printed upon MediaImage creation.
   if (!src.isValid())
     return false;
 
   if (!src.protocolIs(url::kHttpScheme) && !src.protocolIs(url::kHttpsScheme) &&
-      !src.protocolIs(url::kDataScheme)) {
+      !src.protocolIs(url::kDataScheme) && !src.protocolIs(url::kBlobScheme)) {
     context->addConsoleMessage(ConsoleMessage::create(
         JSMessageSource, WarningMessageLevel,
-        "MediaImage src can only be of http/https/data scheme: " +
+        "MediaImage src can only be of http/https/data/blob scheme: " +
             src.getString()));
     return false;
   }
   DCHECK(src.getString().is8Bit());
   if (src.getString().length() > url::kMaxURLChars) {
     context->addConsoleMessage(ConsoleMessage::create(
         JSMessageSource, WarningMessageLevel,
         "MediaImage src exceeds maximum URL length: " + src.getString()));
     return false;
   }
@@ skipping 55 matching lines @@
           JSMessageSource, WarningMessageLevel,
           "The number of MediaImage sizes exceeds the upper limit. "
           "All remaining MediaImage will be ignored"));
       break;
     }
   }
   return mojoMetadata;
 }
 
 }  // namespace blink