fix

Author: YifeiZhuang

okhttp/src/main/java/io/grpc/okhttp/OkHttpClientStream.java

@@ -281,10 +281,11 @@ public void deframeFailed(Throwable cause) {
  @Override
  @GuardedBy("lock")
  public void bytesRead(int processedBytes) {
+ processedWindow -= processedBytes;
  if (processedWindow <= initialWindowSize * Utils.DEFAULT_WINDOW_UPDATE_RATIO) {
  int delta = initialWindowSize - processedWindow;
+ window += delta;
  processedWindow += delta;
- window = initialWindowSize;
  frameWriter.windowUpdate(id(), delta);
  }
  }
@@ -324,8 +325,8 @@ public void transportDataReceived(okio.Buffer frame, boolean endOfStream, int pa
  // We only support 16 KiB frames, and the max permitted in HTTP/2 is 16 MiB. This is verified
  // in OkHttp's Http2 deframer. In addition, this code is after the data has been read.
  int length = (int) frame.size();
- window -= length;
- processedWindow -= (length + paddingLen);
+ window -= (length + paddingLen);
+ processedWindow -= paddingLen;
  if (window < 0) {
  frameWriter.rstStream(id(), ErrorCode.FLOW_CONTROL_ERROR);
  transport.finishStream(