Add support for reading blobs when using the network service.

content/browser/url_loader_factory_getter.h

 // Copyright 2017 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.
 
 #ifndef CONTENT_BROWSER_URL_LOADER_FACTORY_GETTER_H_
 #define CONTENT_BROWSER_URL_LOADER_FACTORY_GETTER_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
@@ skipping 15 matching lines @@
   URLLoaderFactoryGetter();
 
   // Initializes this object on the UI thread. The |partition| is used to
   // initialize the URLLoaderFactories for the network service and AppCache.
   void Initialize(StoragePartitionImpl* partition);
 
   // Called on the IO thread to get the URLLoaderFactory to the network service.
   // The pointer shouldn't be cached.
   mojom::URLLoaderFactoryPtr* GetNetworkFactory();
 
+  // Called on the IO thread to get the URLLoaderFactory to the blob service.
+  // The pointer shouldn't be cached.
+  CONTENT_EXPORT mojom::URLLoaderFactoryPtr* GetBlobFactory();
+
   // Overrides the network URLLoaderFactory for subsequent requests. Passing a
   // null pointer will restore the default behavior.
   // This is called on the UI thread.
   CONTENT_EXPORT void SetNetworkFactoryForTesting(
       mojom::URLLoaderFactoryPtr test_factory);
 
   // Called on the IO thread to get the URLLoaderFactory for AppCache. The
   // pointer should not be cached.
   mojom::URLLoaderFactoryPtr* GetAppCacheFactory();
 
  private:
   friend class base::DeleteHelper<URLLoaderFactoryGetter>;
   friend struct BrowserThread::DeleteOnThread<BrowserThread::IO>;
 
   CONTENT_EXPORT ~URLLoaderFactoryGetter();
   void InitializeOnIOThread(
       mojom::URLLoaderFactoryPtrInfo network_factory,
+      mojom::URLLoaderFactoryPtrInfo blob_factory,
       scoped_refptr<ChromeAppCacheService> appcache_service);
   void SetTestNetworkFactoryOnIOThread(
       mojom::URLLoaderFactoryPtrInfo test_factory);
 
   // Only accessed on IO thread.
   mojom::URLLoaderFactoryPtr network_factory_;
+  mojom::URLLoaderFactoryPtr appcache_factory_;
+  mojom::URLLoaderFactoryPtr blob_factory_;
   mojom::URLLoaderFactoryPtr test_factory_;
-  mojom::URLLoaderFactoryPtr appcache_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLLoaderFactoryGetter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_URL_LOADER_FACTORY_GETTER_H_