[Android WebViewShell] Make WebViewLayoutTest runnable with test_runner.py

android_webview/android_webview_shell_test_apk.isolate

Index: android_webview/android_webview_shell_test_apk.isolate
diff --git a/android_webview/android_webview_shell_test_apk.isolate b/android_webview/android_webview_shell_test_apk.isolate
new file mode 100644
index 0000000000000000000000000000000000000000..b6bd9a55c7ea7bdb279d57fc328a494db7b85441
--- /dev/null
+++ b/android_webview/android_webview_shell_test_apk.isolate
@@ -0,0 +1,15 @@
+# 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.
+
+{
+  'conditions': [
+    ['OS=="android"', {
+      'variables': {
+        'files': [
+          '<(DEPTH)/android_webview/tools/WebViewShell/test/',
+        ],
+      },
+    }],
+  ],
+}