New test infrastructure for producing verbose logs in failing tests.

chrome/test/logging/win/mof_data_parser.cc

+// Copyright (c) 2012 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 "chrome/test/logging/win/mof_data_parser.h"
+
+namespace logging_win {
+
+MofDataParser::MofDataParser(const EVENT_TRACE* event)
+    : scan_(reinterpret_cast<const uint8*>(event->MofData)),
+      length_(event->MofLength) {
+}
+
+bool MofDataParser::ReadString(base::StringPiece* value) {
+  const uint8* str_scan = scan_;
+  const uint8* const str_end = str_scan + length_;
+  while (str_scan < str_end && *str_scan != 0)
+    ++str_scan;
+  if (str_scan == str_end)
+    return false;
+  size_t string_length = str_scan - scan_;
+  bool has_trailing_newline = (string_length > 0 && str_scan[-1] == '\n');
+  value->set(reinterpret_cast<const char*>(scan_),
+    has_trailing_newline ? string_length - 1 : string_length);
+  Advance(string_length + 1);
+  return true;
+}
+
+}  // namespace logging_win