[BlobAsync] Disk support for blob storage

content/browser/blob_storage/chrome_blob_storage_context.h

Index: content/browser/blob_storage/chrome_blob_storage_context.h
diff --git a/content/browser/blob_storage/chrome_blob_storage_context.h b/content/browser/blob_storage/chrome_blob_storage_context.h
index bd02cb1e2d8e9d6b9b120ce90833e101ecb1e21a..9475f566f3f2078997095ceefd863efa113011f5 100644
--- a/content/browser/blob_storage/chrome_blob_storage_context.h
+++ b/content/browser/blob_storage/chrome_blob_storage_context.h
@@ -10,12 +10,14 @@
 
 #include <memory>
 
+#include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "content/common/content_export.h"
 
 namespace base {
 class FilePath;
+class TaskRunner;
 class Time;
 }
 
@@ -44,7 +46,8 @@ class CONTENT_EXPORT ChromeBlobStorageContext
   static ChromeBlobStorageContext* GetFor(
       BrowserContext* browser_context);
 
-  void InitializeOnIOThread();
+  void InitializeOnIOThread(base::FilePath blob_storage_dir,
+                            scoped_refptr<base::TaskRunner> file_task_runner);
 
   storage::BlobStorageContext* context() const { return context_.get(); }
 
@@ -70,6 +73,7 @@ class CONTENT_EXPORT ChromeBlobStorageContext
 
   void DeleteOnCorrectThread() const;
 
+  base::FilePath blob_storage_dir_;
   std::unique_ptr<storage::BlobStorageContext> context_;
 };