Report CHECK/DCHECK to test launcher summary output.

base/logging.h

Index: base/logging.h
diff --git a/base/logging.h b/base/logging.h
index 7854e3934e974b4670930d6855f3ab8699a8376f..83263f5e65cc6f8a4c6c2590e4ffb3be8336c7f1 100644
--- a/base/logging.h
+++ b/base/logging.h
@@ -210,6 +210,9 @@ struct BASE_EXPORT LoggingSettings {
 #define BaseInitLoggingImpl BaseInitLoggingImpl_built_without_NDEBUG
 #endif
 
+// Marker that separates log message and stack trace in log.
+BASE_EXPORT extern const char kStackTraceMarker[];
+
 // Implementation of the InitLogging() method declared below.  We use a
 // more-specific name so we can #define it above without affecting other code
 // that has named stuff "InitLogging".