bug 1113661 - broken h2 dependency id r=hurley

netwerk/protocol/http/Http2Stream.cpp

@@ -538,7 +538,8 @@ Http2Stream::ParseHttpRequestHeaders(const char *buf,
     outputOffset += Http2Session::kFrameHeaderBytes;
 
     if (!idx) {
-      memcpy(mTxInlineFrame.get() + outputOffset, &mPriorityDependency, 4);
+      uint32_t wireDep = PR_htonl(mPriorityDependency);
+      memcpy(mTxInlineFrame.get() + outputOffset, &wireDep, 4);
       memcpy(mTxInlineFrame.get() + outputOffset + 4, &mPriorityWeight, 1);
       outputOffset += 5;
     }

netwerk/protocol/http/Http2Stream.h

@@ -266,8 +266,8 @@ private:
   int64_t                      mRequestBodyLenRemaining;
 
   uint32_t                     mPriority; // geckoish weight
+  uint32_t                     mPriorityDependency; // h2 stream id 3 - 0xb
   uint8_t                      mPriorityWeight; // h2 weight
-  uint8_t                      mPriorityDependency; // h2 stream id 3 - 0xb
 
   // mClientReceiveWindow, mServerReceiveWindow, and mLocalUnacked are for flow control.
   // *window are signed because the race conditions in asynchronous SETTINGS