[BlobStorage] Added back security policy for files in blobs

content/browser/blob_storage/blob_dispatcher_host.h

Index: content/browser/blob_storage/blob_dispatcher_host.h
diff --git a/content/browser/blob_storage/blob_dispatcher_host.h b/content/browser/blob_storage/blob_dispatcher_host.h
index b004aa2ab30aed8b7e9c8add3a2820337890c936..15d9a35013fa2cf15b25ae807aa38e3149c2e9c5 100644
--- a/content/browser/blob_storage/blob_dispatcher_host.h
+++ b/content/browser/blob_storage/blob_dispatcher_host.h
@@ -35,6 +35,7 @@ class BlobStorageContext;
 }
 
 namespace content {
+class ChildProcessSecurityPolicyImpl;
 class ChromeBlobStorageContext;
 
 // This class's responsibility is to listen for and dispatch blob storage
@@ -45,7 +46,8 @@ class ChromeBlobStorageContext;
 // is one per child process.
 class CONTENT_EXPORT BlobDispatcherHost : public BrowserMessageFilter {
  public:
-  explicit BlobDispatcherHost(ChromeBlobStorageContext* blob_storage_context);
+  BlobDispatcherHost(int process_id,
+                     ChromeBlobStorageContext* blob_storage_context);
 
   // BrowserMessageFilter implementation.
   void OnChannelClosing() override;
@@ -132,6 +134,9 @@ class CONTENT_EXPORT BlobDispatcherHost : public BrowserMessageFilter {
   // Unregisters all blobs and urls that were registered in this host.
   void ClearHostFromBlobStorageContext();
 
+  int process_id_;
+  ChildProcessSecurityPolicyImpl* security_policy_;
+
   // Collection of blob ids and a count of how many usages
   // of that id are attributable to this consumer.
   BlobReferenceMap blobs_inuse_map_;