Implement chrome://blob-internals with network service.

content/browser/blob_storage/blob_internals_url_loader.h

Index: content/browser/blob_storage/blob_internals_url_loader.h
diff --git a/content/browser/blob_storage/blob_internals_url_loader.h b/content/browser/blob_storage/blob_internals_url_loader.h
new file mode 100644
index 0000000000000000000000000000000000000000..4dc9ef277589d152ff0177458b6a7e7147aba935
--- /dev/null
+++ b/content/browser/blob_storage/blob_internals_url_loader.h
@@ -0,0 +1,19 @@
+// 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_BLOB_STORAGE_BLOB_INTERNALS_URL_LOADER_H_
+#define CONTENT_BROWSER_BLOB_STORAGE_BLOB_INTERNALS_URL_LOADER_H_
+
+#include "content/common/url_loader.mojom.h"
+
+namespace content {
+class ChromeBlobStorageContext;
+
+void StartBlobInternalsURLLoader(
+    const ResourceRequest& request,
+    mojom::URLLoaderClientPtrInfo client_info,
+    ChromeBlobStorageContext* blob_storage_context);
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_BLOB_STORAGE_VIEW_BLOB_INTERNALS_URL_LOADER_H_