In WinAura, also kill the Metro viewer process in AttemptExit().

chrome/browser/browser_process_platform_part_android.cc

Index: chrome/browser/browser_process_platform_part_android.cc
diff --git a/chrome/browser/browser_process_platform_part_android.cc b/chrome/browser/browser_process_platform_part_android.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6ba74515cbc318e1e9ef91737e338ae48702eac4
--- /dev/null
+++ b/chrome/browser/browser_process_platform_part_android.cc
@@ -0,0 +1,17 @@
+// Copyright (c) 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.
+
+#include "chrome/browser/browser_process_platform_part_mac.h"
+#include "chrome/browser/lifetime/application_lifetime_android.h"
+
+BrowserProcessPlatformPart::BrowserProcessPlatformPart() {
+}
+
+BrowserProcessPlatformPart::~BrowserProcessPlatformPart() {
+}
+
+void BrowserProcessPlatformPart::AttemptExit() {
+  // Tell the Java code to finish() the Activity.
+  TerminateAndroid();
+}