Auto merge of #12579 - izgzhen:fix-fileapi-ref, r=Manishearth

Fix FileAPI's refcount implementation

Revise several intricate parts of FileAPI's internal refcounting-related implementation.

Goal: Get it done right once and for all.

r? @Manishearth

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because it is internal logic change

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1 files changed, 3 insertions, 6 deletions

diff --git a/components/net_traits/filemanager_thread.rs b/components/net_traits/filemanager_thread.rs
index 4cde7b8203a..d648ec23083 100644
--- a/components/net_traits/filemanager_thread.rs
+++ b/components/net_traits/filemanager_thread.rs
@@ -138,18 +138,15 @@ pub enum FileManagerThreadMsg {
     /// as part of a valid Blob URL
     AddSlicedURLEntry(SelectedFileId, RelativePos, IpcSender<Result<SelectedFileId, BlobURLStoreError>>, FileOrigin),
 
-    /// Revoke Blob URL and send back the acknowledgement
-    RevokeBlobURL(SelectedFileId, FileOrigin, IpcSender<Result<(), BlobURLStoreError>>),
-
     /// Decrease reference count and send back the acknowledgement
     DecRef(SelectedFileId, FileOrigin, IpcSender<Result<(), BlobURLStoreError>>),
 
-    /// Increase reference count
-    IncRef(SelectedFileId, FileOrigin),
-
     /// Activate an internal FileID so it becomes valid as part of a Blob URL
     ActivateBlobURL(SelectedFileId, IpcSender<Result<(), BlobURLStoreError>>, FileOrigin),
 
+    /// Revoke Blob URL and send back the acknowledgement
+    RevokeBlobURL(SelectedFileId, FileOrigin, IpcSender<Result<(), BlobURLStoreError>>),
+
     /// Shut down this thread
     Exit,
 }