Android: Fix memory leak for remote MediaStream

talk/app/webrtc/java/jni/jni_helpers.cc

 
 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
@@ skipping 255 matching lines @@
   CHECK_EXCEPTION(jni) << "error during NewGlobalRef";
   CHECK(ret);
   return ret;
 }
 
 void DeleteGlobalRef(JNIEnv* jni, jobject o) {
   jni->DeleteGlobalRef(o);
   CHECK_EXCEPTION(jni) << "error during DeleteGlobalRef";
 }
 
-WeakRef::WeakRef(JNIEnv* jni, jweak ref)
-      : jni_(jni), obj_(jni_->NewLocalRef(ref)) {
-    CHECK_EXCEPTION(jni) << "error during NewLocalRef";
-}
-WeakRef::~WeakRef() {
-  if (obj_) {
-    jni_->DeleteLocalRef(obj_);
-    CHECK_EXCEPTION(jni_) << "error during DeleteLocalRef";
-  }
-}
-
 // Scope Java local references to the lifetime of this object.  Use in all C++
 // callbacks (i.e. entry points that don't originate in a Java callstack
 // through a "native" method call).
 ScopedLocalRefFrame::ScopedLocalRefFrame(JNIEnv* jni) : jni_(jni) {
   CHECK(!jni_->PushLocalFrame(0)) << "Failed to PushLocalFrame";
 }
 ScopedLocalRefFrame::~ScopedLocalRefFrame() {
   jni_->PopLocalFrame(NULL);
 }
 
 }  // namespace webrtc_jni