Update mojo sdk to rev 1dc8a9a5db73d3718d99917fadf31f5fb2ebad4f

third_party/mojo/src/mojo/public/cpp/environment/lib/default_logger.cc

Index: third_party/mojo/src/mojo/public/cpp/environment/lib/default_logger.cc
diff --git a/third_party/mojo/src/mojo/public/cpp/environment/lib/default_logger.cc b/third_party/mojo/src/mojo/public/cpp/environment/lib/default_logger.cc
index 05cafbd7ea73099bc89a296d885c83d66d719c1f..ba787d13529b2f61a98542906eb03e891d476191 100644
--- a/third_party/mojo/src/mojo/public/cpp/environment/lib/default_logger.cc
+++ b/third_party/mojo/src/mojo/public/cpp/environment/lib/default_logger.cc
@@ -38,12 +38,20 @@ const char* GetLogLevelString(MojoLogLevel log_level) {
   return "FATAL";
 }
 
-void LogMessage(MojoLogLevel log_level, const char* message) {
+void LogMessage(MojoLogLevel log_level,
+                const char* source_file,
+                uint32_t source_line,
+                const char* message) {
   if (log_level < g_minimum_log_level)
     return;
 
   // TODO(vtl): Add timestamp also?
-  fprintf(stderr, "%s: %s\n", GetLogLevelString(log_level), message);
+  if (source_file) {
+    fprintf(stderr, "%s: %s(%u): %s\n", GetLogLevelString(log_level),
+            source_file, static_cast<unsigned>(source_line), message);
+  } else {
+    fprintf(stderr, "%s: %s\n", GetLogLevelString(log_level), message);
+  }
   if (log_level >= MOJO_LOG_LEVEL_FATAL)
     abort();
 }