Code to collect issue 97285 debugging info for crash reports.

content/common/content_debug_logging.cc

Index: content/common/content_debug_logging.cc
diff --git a/content/common/content_debug_logging.cc b/content/common/content_debug_logging.cc
new file mode 100644
index 0000000000000000000000000000000000000000..af8bf184ca76cd9a149eaf611e51db361792fd1c
--- /dev/null
+++ b/content/common/content_debug_logging.cc
@@ -0,0 +1,45 @@
+// Copyright (c) 2011 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 "content/public/common/content_debug_logging.h"
+
+#include "base/logging.h"
+
+namespace content {
+namespace debug {
+
+namespace {
+
+// These should be initialized by the process as early in main() as
+// possible, so should be thread-safe.
+RecordMsgFn* g_record_handler = NULL;
+GetMessagesFn* g_get_handler = NULL;
+
+}  // namespace
+
+void RegisterMessageHandlers(RecordMsgFn* record_handler,
+                             GetMessagesFn* get_handler) {
+  g_record_handler = record_handler;
+  g_get_handler = get_handler;
+}
+
+void RecordMsg(int bug_id, const std::string& msg) {
+  // TODO(shess): It might be useful to log warnings or even DCHECK if
+  // there is no handler, since that implies that the messages are not
+  // being recorded.  Unfortunately, it would also cause dirty test
+  // output.
+  if (g_record_handler)
+    (*g_record_handler)(bug_id, msg);
+}
+
+bool GetMessages(int bug_id, std::vector<std::string>* msgs) {
+  if (g_get_handler)
+    return (*g_get_handler)(bug_id, msgs);
+
+  msgs->clear();
+  return false;
+}
+
+}  // namespace debug
+}  // namespace content