[BlobAsync] Disk support for blob storage

storage/common/blob_storage/blob_storage_constants.h

Index: storage/common/blob_storage/blob_storage_constants.h
diff --git a/storage/common/blob_storage/blob_storage_constants.h b/storage/common/blob_storage/blob_storage_constants.h
index 8052a21b6f8ee7886a01d399eadeabef0a1ecd17..785a8ba9ff14325935be1238c32de7fe911922cf 100644
--- a/storage/common/blob_storage/blob_storage_constants.h
+++ b/storage/common/blob_storage/blob_storage_constants.h
@@ -55,28 +55,6 @@ enum class IPCBlobItemRequestStrategy {
   LAST = FILE
 };
 
-// These items cannot be reordered or renumbered because they're recorded to
-// UMA. New items must be added immediately before LAST, and LAST must be set to
-// the the last item.
-// DEPRECATED, please use BlobStatus instead.
-enum class IPCBlobCreationCancelCode {
-  UNKNOWN = 0,
-  OUT_OF_MEMORY = 1,
-  // We couldn't create or write to a file. File system error, like a full disk.
-  FILE_WRITE_FAILED = 2,
-  // The renderer was destroyed while data was in transit.
-  SOURCE_DIED_IN_TRANSIT = 3,
-  // The renderer destructed the blob before it was done transferring, and there
-  // were no outstanding references (no one is waiting to read) to keep the
-  // blob alive.
-  BLOB_DEREFERENCED_WHILE_BUILDING = 4,
-  // A blob that we referenced during construction is broken, or a browser-side
-  // builder tries to build a blob with a blob reference that isn't finished
-  // constructing.
-  REFERENCED_BLOB_BROKEN = 5,
-  LAST = REFERENCED_BLOB_BROKEN
-};
-
 // This is the enum to rule them all in the blob system.
 // These values are used in UMA metrics, so they should not be changed. Please
 // update LAST_ERROR if you add an error condition and LAST if you add new
@@ -108,8 +86,10 @@ enum class BlobStatus {
   // populating pending data, and/or copying data from dependent blobs. See
   // InternalBlobData::BuildingState determine which of these are happening, as
   // they all can happen concurrently.
-  PENDING = 201,
-  LAST = PENDING
+  PENDING_QUOTA = 201,
+  PENDING_TRANSPORT = 202,
+  PENDING_INTERNALS = 203,
+  LAST = PENDING_INTERNALS
 };
 
 using BlobStatusCallback = base::Callback<void(BlobStatus)>;
@@ -117,6 +97,8 @@ using BlobStatusCallback = base::Callback<void(BlobStatus)>;
 // Returns if the status is an error code.
 STORAGE_COMMON_EXPORT bool BlobStatusIsError(BlobStatus status);
 
+STORAGE_COMMON_EXPORT bool BlobStatusIsPending(BlobStatus status);
+
 // Returns if the status is a bad enough error to flag the IPC as bad. This is
 // only INVALID_CONSTRUCTION_ARGUMENTS.
 STORAGE_COMMON_EXPORT bool BlobStatusIsBadIPC(BlobStatus status);