[PATCH] mfplat: Allow deleting open files.

[Esme Povirk]

Signed-off-by: Esme Povirk 
---
Let's Build a Zoo on Steam creates a temporary file
and expects to be able to delete it while playing it.

dlls/mfplat/main.c         | 2 +-
 dlls/mfplat/tests/mfplat.c | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/dlls/mfplat/main.c b/dlls/mfplat/main.c
index 37a66798b2f..c36a2069bd8 100644
--- a/dlls/mfplat/main.c
+++ b/dlls/mfplat/main.c
@@ -4407,7 +4407,7 @@ HRESULT WINAPI MFCreateFile(MF_FILE_ACCESSMODE accessmode, MF_FILE_OPENMODE open
 {
     DWORD capabilities = MFBYTESTREAM_IS_SEEKABLE | MFBYTESTREAM_DOES_NOT_USE_NETWORK;
     DWORD filecreation_disposition = 0, fileaccessmode = 0, fileattributes = 0;
-    DWORD filesharemode = FILE_SHARE_READ;
+    DWORD filesharemode = FILE_SHARE_READ | FILE_SHARE_DELETE;
     struct bytestream *object;
     FILETIME writetime;
     HANDLE file;
diff --git a/dlls/mfplat/tests/mfplat.c b/dlls/mfplat/tests/mfplat.c
index 541459c715b..0f928284534 100644
--- a/dlls/mfplat/tests/mfplat.c
+++ b/dlls/mfplat/tests/mfplat.c
@@ -2077,10 +2077,14 @@ static void test_file_stream(void)
     hr = MFCreateFile(MF_ACCESSMODE_READ, MF_OPENMODE_FAIL_IF_NOT_EXIST, MF_FILEFLAGS_NONE, pathW, &bytestream);
     ok(FAILED(hr), "Unexpected hr %#x.\n", hr);

+    hr = MFCreateFile(MF_ACCESSMODE_READ, MF_OPENMODE_FAIL_IF_NOT_EXIST, MF_FILEFLAGS_NONE, filename, &bytestream);
+    ok(hr == S_OK, "got 0x%08x\n", hr);
+    ok(DeleteFileW(filename), "failed to delete file\n");
+    IMFByteStream_Release(bytestream);
+
     hr = MFShutdown();
     ok(hr == S_OK, "Failed to shut down, hr %#x.\n", hr);

-    DeleteFileW(filename);
     DeleteFileW(newfilename);
 }