Update HTTP proxy configuration for all media playback inside stagefright.

Change-Id: Ie0dd00045aba668d8b49da73224e7a7c9c04f69b
related-to-bug: 8873723
(cherry picked from commit 2704965b8a1ff3b7450ff58ccecf86d8ec688c40)
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index 4a34233..68cbdf5 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -814,4 +814,15 @@
     return mPlayer->setNextPlayer(next == NULL ? NULL : next->mPlayer);
 }
 
+status_t MediaPlayer::updateProxyConfig(
+        const char *host, int32_t port, const char *exclusionList) {
+    const sp<IMediaPlayerService>& service = getMediaPlayerService();
+
+    if (service != NULL) {
+        return service->updateProxyConfig(host, port, exclusionList);
+    }
+
+    return INVALID_OPERATION;
+}
+
 }; // namespace android