Make HTTP/2 logging use QUICHE logging

Also replace (D)CHECK with QUICHE_(D)CHECK.

PiperOrigin-RevId: 355220010
Change-Id: If829acb1f1669ef581f356c0d584b7275894bed9

http2/hpack/decoder/hpack_string_decoder.h

diff --git a/http2/hpack/decoder/hpack_string_decoder.h b/http2/hpack/decoder/hpack_string_decoder.h
index 252ab04..b861d23 100644
--- a/http2/hpack/decoder/hpack_string_decoder.h
+++ b/http2/hpack/decoder/hpack_string_decoder.h
@@ -154,7 +154,7 @@
   bool ResumeDecodingLength(DecodeBuffer* db,
                             Listener* cb,
                             DecodeStatus* status) {
-    DCHECK_EQ(state_, kResumeDecodingLength);
+    QUICHE_DCHECK_EQ(state_, kResumeDecodingLength);
     *status = length_decoder_.Resume(db);
     if (*status == DecodeStatus::kDecodeDone) {
       state_ = kDecodingString;