Android: Fix media and content unittests on Android debug bots

media/base/media_stub.cc

 // Copyright 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.
 
 #include "media/base/media.h"
 
 #include "base/logging.h"
 
+#if defined(OS_ANDROID)
+#include "base/android/jni_android.h"
+#include "media/base/android/media_jni_registrar.h"
+#endif
+
 // This file is intended for platforms that don't need to load any media
 // libraries (e.g., Android and iOS).
 namespace media {
 
 bool InitializeMediaLibrary(const base::FilePath& module_dir) {
   return true;
 }
 
 void InitializeMediaLibraryForTesting() {
+#if defined(OS_ANDROID)
+  // Register JNI bindings for android.
+  JNIEnv* env = base::android::AttachCurrentThread();
+  RegisterJni(env);
+#endif
 }
 
 bool IsMediaLibraryInitialized() {
   return true;
 }
 
 }  // namespace media