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

build/android/adb_run_chrome_public

Index: build/android/adb_run_chrome_public
diff --git a/build/android/adb_run_chrome_public b/build/android/adb_run_chrome_public
new file mode 100755
index 0000000000000000000000000000000000000000..bf1507114427c352dac72047c1d6daebab4ba43a
--- /dev/null
+++ b/build/android/adb_run_chrome_public
@@ -0,0 +1,12 @@
+#!/bin/bash
+#
+# Copyright 2015 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.
+
+optional_url=$1
+
+adb shell am start \
+  -a android.intent.action.VIEW \
+  -n org.chromium.chrome/com.google.android.apps.chrome.Main \
+  ${optional_url:+-d "$optional_url"}