Android: Fix media and content unittests on Android debug bots

media/base/media_stub.cc

Index: media/base/media_stub.cc
diff --git a/media/base/media_stub.cc b/media/base/media_stub.cc
index 27bdc15e2d6be0706c5aa038575223ed3ab952de..aadfbd1150fa96661595ad2f69f5a77644a99629 100644
--- a/media/base/media_stub.cc
+++ b/media/base/media_stub.cc
@@ -6,6 +6,11 @@
 
 #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 {
@@ -15,6 +20,11 @@ bool InitializeMediaLibrary(const base::FilePath& module_dir) {
 }
 
 void InitializeMediaLibraryForTesting() {
+#if defined(OS_ANDROID)
+  // Register JNI bindings for android.
+  JNIEnv* env = base::android::AttachCurrentThread();
+  RegisterJni(env);
+#endif
 }
 
 bool IsMediaLibraryInitialized() {