Change include order in logging_unittest.cc

to not override Chromium logging macros in Chromium headers.

BUG=468375
TBR=zea@chromium.org

Review URL: https://codereview.chromium.org/1002013010

Cr-Commit-Position: refs/heads/master@{#321546}

jingle/glue/logging_unittest.cc

@@ -7,16 +7,18 @@
 // Also note that we are only allowed to call InitLogging() twice so the test
 // cases are more dense than normal.
 
-// The following include must be first in this file. It ensures that
+// We must include Chromium headers before including the overrides header
+// since webrtc's logging.h file may conflict with chromium.
+#include "base/command_line.h"
+#include "base/files/file_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// The following include come before including logging.h. It ensures that
 // libjingle style logging is used.
 #define LOGGING_INSIDE_WEBRTC
 
 #include "third_party/webrtc/overrides/webrtc/base/logging.h"
 
-#include "base/command_line.h"
-#include "base/files/file_util.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
 #if defined(OS_WIN)
 static const wchar_t* const log_file_name = L"libjingle_logging.log";
 #else