Uses gyp "rules" rather than "actions" templates for the JNI generator.

media/media.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,
     # Override to dynamically link the PulseAudio library.
     'use_pulseaudio%': 0,
     # Override to dynamically link the cras (ChromeOS audio) library.
@@ skipping 986 matching lines @@
               '<(PRODUCT_DIR)/lib.java/chromium_media.jar',
              ],
           },
           'includes': [ '../build/apk_test.gypi' ],
         },
       ],
     }],
     ['OS == "android"', {
       'targets': [
         {
+          'target_name': 'player_android_jni_headers',
+          'type': 'none',
+          'sources': [
+            'base/android/java/src/org/chromium/media/MediaPlayerListener.java',
+          ],
+          'variables': {
+            'jni_gen_dir': 'media',
+          },
+          'includes': [ '../build/jni_generator.gypi' ],
+        },
+        {
           'target_name': 'player_android',
           'type': 'static_library',
           'sources': [
             'base/android/media_player_bridge.cc',
             'base/android/media_player_bridge.h',
           ],
           'dependencies': [
             '../base/base.gyp:base',
+            'player_android_jni_headers',
           ],
           'include_dirs': [
             '<(SHARED_INTERMEDIATE_DIR)/media',
           ],
-          'actions': [
-            {
-              'action_name': 'generate-jni-headers',
-              'inputs': [
-                '../base/android/jni_generator/jni_generator.py',
-                'base/android/java/src/org/chromium/media/MediaPlayerListener.java',
-              ],
-              'outputs': [
-                '<(SHARED_INTERMEDIATE_DIR)/media/jni/media_player_listener_jni.h',
-              ],
-              'action': [
-                'python',
-                '<(DEPTH)/base/android/jni_generator/jni_generator.py',
-                '-o',
-                '<@(_inputs)',
-                '<@(_outputs)',
-              ],
-            },
-          ],
         },
         {
           'target_name': 'media_java',
           'type': 'none',
           'dependencies': [ '../base/base.gyp:base_java' ],
           'variables': {
             'package_name': 'media',
             'java_in_dir': 'base/android/java',
           },
           'includes': [ '../build/java.gypi' ],
@@ skipping 88 matching lines @@
             '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
           ],
           'sources': [
             'tools/media_bench/media_bench.cc',
           ],
         },
       ],
     }]
   ],
 }