Improve EAT_STREAM_PARAMETERS for Windows x86

base/logging.cc

Index: base/logging.cc
diff --git a/base/logging.cc b/base/logging.cc
index 7bd6d63befca8244720bddd1ed5ba4d1771e68ed..c1f5f38d72303d4d638119c75148de69666b0c1e 100644
--- a/base/logging.cc
+++ b/base/logging.cc
@@ -343,6 +343,11 @@ void CloseLogFileUnlocked() {
 
 }  // namespace
 
+// This is never instantiated, it's just used for EAT_STREAM_PARAMETERS to have
+// an object of the correct type on the LHS of the unused part of the ternary
+// operator.
+std::ostream* g_swallow_stream;
+
 LoggingSettings::LoggingSettings()
     : logging_dest(LOG_DEFAULT),
       log_file(nullptr),