Add new HTTP/2 and HPACK decoder in net/http2/.

net/http2/hpack/decoder/hpack_string_decoder_listener.cc

Index: net/http2/hpack/decoder/hpack_string_decoder_listener.cc
diff --git a/net/http2/hpack/decoder/hpack_string_decoder_listener.cc b/net/http2/hpack/decoder/hpack_string_decoder_listener.cc
new file mode 100644
index 0000000000000000000000000000000000000000..97ec985aa5449280b3ee1e005e6c201bdd8f089e
--- /dev/null
+++ b/net/http2/hpack/decoder/hpack_string_decoder_listener.cc
@@ -0,0 +1,36 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/http2/hpack/decoder/hpack_string_decoder_listener.h"
+
+#include "base/logging.h"
+
+namespace net {
+namespace test {
+
+void HpackStringDecoderVLoggingListener::OnStringStart(bool huffman_encoded,
+                                                       size_t len) {
+  VLOG(1) << "OnStringStart: H=" << huffman_encoded << ", len=" << len;
+  if (wrapped_) {
+    wrapped_->OnStringStart(huffman_encoded, len);
+  }
+}
+
+void HpackStringDecoderVLoggingListener::OnStringData(const char* data,
+                                                      size_t len) {
+  VLOG(1) << "OnStringData: len=" << len;
+  if (wrapped_) {
+    return wrapped_->OnStringData(data, len);
+  }
+}
+
+void HpackStringDecoderVLoggingListener::OnStringEnd() {
+  VLOG(1) << "OnStringEnd";
+  if (wrapped_) {
+    return wrapped_->OnStringEnd();
+  }
+}
+
+}  // namespace test
+}  // namespace net