Fix two memory leaks in SecureSocket.

runtime/include/dart_api.h

 /*
  * Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
  * for details. All rights reserved. Use of this source code is governed by a
  * BSD-style license that can be found in the LICENSE file.
  */
 
 #ifndef INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
@@ skipping 457 matching lines @@
  *
  * \param object An object.
  * \param peer A pointer to a native object or NULL.  This value is
  *   provided to callback when it is invoked.
  * \param external_allocation_size The number of externally allocated
  *   bytes for peer. Used to inform the garbage collector.
  * \param callback A function pointer that will be invoked sometime
  *   after the object is garbage collected, unless the handle has been deleted.
  *   A valid callback needs to be specified it cannot be NULL.
  *
- * \return Success if the weak persistent handle was
- *   created. Otherwise, returns an error.
+ * \return Returns the new weak persistent handle.
+     Returns NULL if and only if the callback is NULL.

[Søren Gjesse, 2015/09/02 16:24:31]

Please check this with the VM team.

[Bill Hesse, 2015/09/03 08:47:00]

They haven't looked at it, so removing it.

  */
 DART_EXPORT Dart_WeakPersistentHandle Dart_NewWeakPersistentHandle(
     Dart_Handle object,
     void* peer,
     intptr_t external_allocation_size,
     Dart_WeakPersistentHandleFinalizer callback);
 
 DART_EXPORT void Dart_DeleteWeakPersistentHandle(
     Dart_Isolate isolate,
     Dart_WeakPersistentHandle object);
@@ skipping 2363 matching lines @@
 
 /**
  * Returns the port that script load requests should be sent on.
  *
  * \return Returns the port for load requests or ILLEGAL_PORT if the service
  * isolate failed to startup or does not support load requests.
  */
 DART_EXPORT Dart_Port Dart_ServiceWaitForLoadPort();
 
 #endif  /* INCLUDE_DART_API_H_ */  /* NOLINT */