Move SystemLogsSource class into new file

chrome/browser/feedback/system_logs/system_logs_source.cc

Index: chrome/browser/feedback/system_logs/system_logs_source.cc
diff --git a/chrome/browser/feedback/system_logs/system_logs_source.cc b/chrome/browser/feedback/system_logs/system_logs_source.cc
new file mode 100644
index 0000000000000000000000000000000000000000..adc9cecc7caa907ecda7d8cd679402092b5cde57
--- /dev/null
+++ b/chrome/browser/feedback/system_logs/system_logs_source.cc
@@ -0,0 +1,14 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/feedback/system_logs/system_logs_source.h"
+
+namespace system_logs {
+
+SystemLogsSource::SystemLogsSource(const std::string& source_name)
+    : source_name_(source_name) {}
+
+SystemLogsSource::~SystemLogsSource() {}
+
+}  // namespace system_logs