import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/ipc/PBlob.ipdl

@@ -0,0 +1,57 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+include protocol PBackground;
+include protocol PBlobStream;
+include protocol PContent;
+include protocol PContentBridge;
+include protocol PFileDescriptorSet;
+include protocol PSendStream;
+
+include BlobTypes;
+include DOMTypes;
+include InputStreamParams;
+
+namespace mozilla {
+namespace dom {
+
+union ResolveMysteryParams
+{
+  NormalBlobConstructorParams;
+  FileBlobConstructorParams;
+};
+
+sync protocol PBlob
+{
+  manager PBackground or PContent or PContentBridge;
+  manages PBlobStream;
+
+both:
+  async __delete__();
+
+parent:
+  async PBlobStream(uint64_t begin, uint64_t length);
+
+  async ResolveMystery(ResolveMysteryParams params);
+
+  sync BlobStreamSync(uint64_t begin, uint64_t length)
+    returns (InputStreamParams params, OptionalFileDescriptorSet fds);
+
+  sync WaitForSliceCreation();
+
+  // Use only for testing!
+  sync GetFileId()
+    returns (int64_t fileId);
+
+  sync GetFilePath()
+    returns (nsString filePath);
+
+child:
+  // This method must be called by the parent when the PBlobParent is fully
+  // created in order to release the known blob.
+  async CreatedFromKnownBlob();
+};
+
+} // namespace dom
+} // namespace mozilla