android: Don't log error when checking weak ref

base/android/jni_weak_ref.cc

Index: base/android/jni_weak_ref.cc
diff --git a/base/android/jni_weak_ref.cc b/base/android/jni_weak_ref.cc
index 35a76dab7692bffbe4d4ed1c416189f05eee44f9..55244f2f7331c8a591f02c6051923d7ebda3b33c 100644
--- a/base/android/jni_weak_ref.cc
+++ b/base/android/jni_weak_ref.cc
@@ -47,11 +47,8 @@ base::android::ScopedJavaLocalRef<jobject>
 base::android::ScopedJavaLocalRef<jobject> GetRealObject(
     JNIEnv* env, jweak obj) {
   jobject real = NULL;
-  if (obj) {
+  if (obj)
     real = env->NewLocalRef(obj);
-    if (!real)
-      DLOG(ERROR) << "The real object has been deleted!";
-  }
   return base::android::ScopedJavaLocalRef<jobject>(env, real);
 }