Handle filling up of memory buffer to make log processing in DevTools Profiler easier.

src/log.h

Index: src/log.h
diff --git a/src/log.h b/src/log.h
index 56cf93d5ffb05fc9b537ebfc08c914452a7bb746..c845feec1f9391763a663888d9750b480ab75c20 100644
--- a/src/log.h
+++ b/src/log.h
@@ -231,6 +231,9 @@ class Logger {
   // Logs a StringEvent regardless of whether FLAG_log is true.
   static void UncheckedStringEvent(const char* name, const char* value);
 
+  // Stops logging and profiling in case of insufficient resources.
+  static void StopLoggingAndProfiling();
+
   // Returns whether profiler's sampler is active.
   static bool IsProfilerSamplerActive();