[Android] Add ChromiumNetTestSupport.apk for the java EmbeddedTestServer.

base/android/java/templates/NativeLibraries.template

 // Copyright 2014 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.
 
-package org.chromium.base.library_loader;
+#ifndef NATIVE_LIBRARIES_PACKAGE
+#define NATIVE_LIBRARIES_PACKAGE org.chromium.base.library_loader
+#endif
+
+package NATIVE_LIBRARIES_PACKAGE;
 
 import org.chromium.base.annotations.SuppressFBWarnings;
 
+#ifndef NATIVE_LIBRARIES_CLASS_NAME
+#define NATIVE_LIBRARIES_CLASS_NAME NativeLibraries
+#endif
+
 @SuppressFBWarnings
-public class NativeLibraries {
+public class NATIVE_LIBRARIES_CLASS_NAME {
     /**
      * IMPORTANT NOTE: The variables defined here must _not_ be 'final'.
      *
      * The reason for this is very subtle:
      *
      * - This template is used to generate several distinct, but similar
      *   files used in different contexts:
      *
      *   o .../gen/templates/org/chromium/base/library_loader/NativeLibraries.java
      *
@@ skipping 65 matching lines @@
     // This is the expected version of the 'main' native library, which is the one that
     // implements the initial set of base JNI functions including
     // base::android::nativeGetVersionName()
     static String sVersionNumber =
 #if defined(NATIVE_LIBRARIES_VERSION_NUMBER)
       NATIVE_LIBRARIES_VERSION_NUMBER;
 #else
       "";
 #endif
 }