win: Save contents of TEBs allowing !teb and !gle to work in windbg

snapshot/test/test_thread_snapshot.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 37 matching lines @@
 }
 
 int TestThreadSnapshot::Priority() const {
   return priority_;
 }
 
 uint64_t TestThreadSnapshot::ThreadSpecificDataAddress() const {
   return thread_specific_data_address_;
 }
 
+std::vector<const MemorySnapshot*> TestThreadSnapshot::ExtraMemory() const {
+  std::vector<const MemorySnapshot*> extra_memory;
+  for (const auto& em : extra_memory_)
+    extra_memory.push_back(em);
+  return extra_memory;
+}
+
 }  // namespace test
 }  // namespace crashpad