Make the build control what library(/ies) to load

content/content.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,  # Use higher warning level.
     'directxsdk_exists': '<!(python <(DEPTH)/build/dir_exists.py ../third_party/directxsdk)',
     'conditions': [
       ['inside_chromium_build==0', {
@@ skipping 283 matching lines @@
           'variables': {
             'aidl_interface_file': 'public/android/java/src/org/chromium/content/common/common.aidl',
           },
           'sources': [
             'public/android/java/src/org/chromium/content/common/IChildProcessCallback.aidl',
             'public/android/java/src/org/chromium/content/common/IChildProcessService.aidl',
           ],
           'includes': [ '../build/java_aidl.gypi' ],
         },
         {
+          'target_name': 'content_native_libraries_gen',
+          'type': 'none',
+          'sources': [
+            'public/android/java/templates/NativeLibraries.template',
+          ],
+          'variables': {
+            'package_name': 'org/chromium/content/app',
+            'include_path': 'public/android/java/templates',
+            'template_deps': [
+              'public/android/java/templates/native_libraries_array.h'
+            ],
+          },
+          'includes': [ '../build/android/java_cpp_template.gypi' ],
+        },
+        {
           'target_name': 'content_java',
           'type': 'none',
           'dependencies': [
             '../base/base.gyp:base',
             '../media/media.gyp:media_java',
             '../net/net.gyp:net',
             '../ui/ui.gyp:ui_java',
             'common_aidl',
             'content_common',
             'page_transition_types_java',
             'result_codes_java',
+            'content_native_libraries_gen',
           ],
           'variables': {
             'java_in_dir': '../content/public/android/java',
+            'jar_excluded_classes': [ '*/NativeLibraries.class' ],
             'has_java_resources': 1,
             'R_package': 'org.chromium.content',
             'R_package_relpath': 'org/chromium/content',
             'java_strings_grd': 'android_content_strings.grd',
           },
           'conditions': [
             ['android_webview_build == 0', {
               'dependencies': [
                 '../third_party/eyesfree/eyesfree.gyp:eyesfree_java',
                 '../third_party/guava/guava.gyp:guava_javalib',
@@ skipping 66 matching lines @@
             'include_dirs': [
               '<(SHARED_INTERMEDIATE_DIR)/content',
             ],
           },
           'includes': [ 'content_jni.gypi' ],
         },
       ],
     }],  # OS == "android"
   ],
 }