Add a snapshot of flutter/engine/src/build to our sdk

build/android/tests/symbolize/b.cc

Index: build/android/tests/symbolize/b.cc
diff --git a/build/android/tests/symbolize/b.cc b/build/android/tests/symbolize/b.cc
new file mode 100644
index 0000000000000000000000000000000000000000..db8752099aa7bfec68ee066d19b66d183e4c6904
--- /dev/null
+++ b/build/android/tests/symbolize/b.cc
@@ -0,0 +1,14 @@
+// Copyright 2013 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.
+
+class B {
+ public:
+  B();
+  void Baz(float f);
+  void Qux(double d);
+};
+
+B::B() {}
+void B::Baz(float f) {}
+void B::Qux(double d) {}