Backed out changeset 2577afd226ff (bug 1358113)

dom/ipc/ContentChild.cpp

@@ -3305,8 +3305,11 @@ ContentChild::RecvFileCreationResponse(const nsID& aUUID,
   } else {
     MOZ_ASSERT(aResult.type() == FileCreationResult::TFileCreationSuccessResult);
 
-    RefPtr<BlobImpl> impl =
-      IPCBlobUtils::Deserialize(aResult.get_FileCreationSuccessResult().blob());
+    PBlobChild* blobChild =
+      aResult.get_FileCreationSuccessResult().blobChild();
+    MOZ_ASSERT(blobChild);
+
+    RefPtr<BlobImpl> impl = static_cast<BlobChild*>(blobChild)->GetBlobImpl();
     helper->ResponseReceived(impl, NS_OK);
   }
 

dom/ipc/ContentParent.cpp

@@ -46,7 +46,6 @@
 #include "mozilla/dom/File.h"
 #include "mozilla/dom/FileCreatorHelper.h"
 #include "mozilla/dom/FileSystemSecurity.h"
-#include "mozilla/dom/IPCBlobUtils.h"
 #include "mozilla/dom/ExternalHelperAppParent.h"
 #include "mozilla/dom/GetFilesHelper.h"
 #include "mozilla/dom/GeolocationBinding.h"
@@ -5300,17 +5299,13 @@ ContentParent::RecvFileCreationRequest(const nsID& aID,
 
   MOZ_ASSERT(blobImpl);
 
-  IPCBlob ipcBlob;
-  rv = IPCBlobUtils::Serialize(blobImpl, this, ipcBlob);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    if (!SendFileCreationResponse(aID, FileCreationErrorResult(rv))) {
-      return IPC_FAIL_NO_REASON(this);
-    }
-
-    return IPC_OK();
+  BlobParent* blobParent = BlobParent::GetOrCreate(this, blobImpl);
+  if (NS_WARN_IF(!blobParent)) {
+    return IPC_FAIL_NO_REASON(this);
   }
 
-  if (!SendFileCreationResponse(aID, FileCreationSuccessResult(ipcBlob))) {
+  if (!SendFileCreationResponse(aID,
+                                FileCreationSuccessResult(blobParent, nullptr))) {
     return IPC_FAIL_NO_REASON(this);
   }
 

dom/ipc/PContent.ipdl

@@ -212,7 +212,7 @@ union GetFilesResponseResult
 
 struct FileCreationSuccessResult
 {
-  IPCBlob blob;
+  PBlob blob;
 };
 
 struct FileCreationErrorResult