Bug 1253358 - no flags on priority frames r=hurley

netwerk/protocol/http/Http2Session.cpp

@@ -632,6 +632,7 @@ Http2Session::CreateFrameHeader(charType dest, uint16_t frameLength,
 {
   MOZ_ASSERT(frameLength <= kMaxFrameData, "framelength too large");
   MOZ_ASSERT(!(streamID & 0x80000000));
+  MOZ_ASSERT(!frameFlags || (frameType != FRAME_TYPE_PRIORITY));
 
   dest[0] = 0x00;
   NetworkEndian::writeUint16(dest + 1, frameLength);

netwerk/protocol/http/Http2Stream.cpp

@@ -738,8 +738,7 @@ Http2Stream::AdjustPushedPriority()
   mTxInlineFrameUsed += Http2Session::kFrameHeaderBytes + 5;
 
   mSession->CreateFrameHeader(packet, 5,
-                              Http2Session::FRAME_TYPE_PRIORITY,
-                              Http2Session::kFlag_PRIORITY,
+                              Http2Session::FRAME_TYPE_PRIORITY, 0,
                               mPushSource->mStreamID);
 
   mPushSource->SetPriority(mPriority);