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..4f049eea0e97a97285f9851edcb1c02cd6923d1e 100644
--- a/base/logging.h
+++ b/base/logging.h
@@ -15,6 +15,7 @@
 #include <utility>
 
 #include "base/base_export.h"
+#include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/debug/debugger.h"
 #include "base/macros.h"
@@ -277,8 +278,17 @@ BASE_EXPORT void SetShowErrorDialogs(bool enable_dialogs);
 // The default handler shows a dialog box and then terminate the process,
 // however clients can use this function to override with their own handling
 // (e.g. a silent one for Unit Tests)
-typedef void (*LogAssertHandlerFunction)(const std::string& str);
+typedef base::Callback<void(const char* file,
+                            int line,
+                            size_t message_start,

[Paweł Hajdan Jr., 2017/01/27 17:19:44]

I'm worried these indexes are a weird API.

Why not pass two strings instead, one for the message and second one for the
stack trace?

[alex-ac, 2017/02/11 20:12:19]

Done.

+                            size_t stack_start,
+                            const std::string& str)>
+    LogAssertHandlerFunction;
+
+// You probably must use ScopedLogAssertHandler instead of this functions.

[Paweł Hajdan Jr., 2017/01/27 17:19:44]

nit: "Probably" and "must" don't mix well for me. Could you change this to
something like "consider" or similar.

[alex-ac, 2017/02/11 20:12:19]

Done.

+// see base/test/logging_utils.h.
 BASE_EXPORT void SetLogAssertHandler(LogAssertHandlerFunction handler);

[Paweł Hajdan Jr., 2017/01/27 17:19:44]

How about changing the names to more like Push/Pop? That reflects the new
semantics better than Set/Reset.

[alex-ac, 2017/02/11 20:12:19]

Done.

+BASE_EXPORT void ResetLogAssertHandler();
 
 // Sets the Log Message Handler that gets passed every log message before
 // it's sent to other log destinations (if any).