Check library version and handle library load errors

content/public/android/java/templates/NativeLibraries.template

 // 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.
 
 package org.chromium.content.app;
 
 public class NativeLibraries {
     /**
      * IMPORTANT NOTE: The variables defined here must _not_ be 'final'.
      *
@@ skipping 42 matching lines @@
     public static boolean ENABLE_LINKER_TESTS = false;
 #endif
 
     // This is the list of native libraries to be loaded (in the correct order)
     // by LibraryLoader.java.  The content java library is compiled with no
     // array defined, and then the build system creates a version of the file
     // with the real list of libraries required (which changes based upon which
     // .apk is being built).
     // TODO(cjhopman): This is public since it is referenced by ChromeNativeTestActivity.java
     // directly. The two ways of library loading should be refactored into one.
-    public static String[] libraries
+    public static final String[] LIBRARIES
 #include <native_libraries_array.h>
       ;
+    // This is the expected version of the 'main' native library, which is the one that
+    // implements the initial set of content JNI functions including
+    // content::nativeGetVersionName()
+    // Note(aberent): This is logically final, but making it final breaks the build, since it
+    // lets other Java components read its value at compile time rather than at run time, hence
+    // reading it from the wrong class file.
+    static String VERSION_NUMBER
+#include <native_libraries_version.h>
+      ;
 }