jni: Pass method parameters as JavaParamRef in content.

content/browser/media/android/media_session.cc

Index: content/browser/media/android/media_session.cc
diff --git a/content/browser/media/android/media_session.cc b/content/browser/media/android/media_session.cc
index 48ceb5468f5417da79e5f39e1a86f60403e0b26b..60360f420e243da124a46a11dda071643d82519e 100644
--- a/content/browser/media/android/media_session.cc
+++ b/content/browser/media/android/media_session.cc
@@ -112,7 +112,9 @@ void MediaSession::RemovePlayers(MediaSessionObserver* observer) {
   AbandonSystemAudioFocusIfNeeded();
 }
 
-void MediaSession::OnSuspend(JNIEnv* env, jobject obj, jboolean temporary) {
+void MediaSession::OnSuspend(JNIEnv* env,
+                             const JavaParamRef<jobject>& obj,
+                             jboolean temporary) {
   // TODO(mlamouri): this check makes it so that if a MediaSession is paused and
   // then loses audio focus, it will still stay in the Suspended state.
   // See https://crbug.com/539998
@@ -129,7 +131,7 @@ void MediaSession::OnSuspend(JNIEnv* env, jobject obj, jboolean temporary) {
   UpdateWebContents();
 }
 
-void MediaSession::OnResume(JNIEnv* env, jobject obj) {
+void MediaSession::OnResume(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   if (audio_focus_state_ != State::SUSPENDED)
     return;