Write MINIDUMP_HANDLE_DATA_STREAM to minidump

minidump/minidump_file_writer.cc

Index: minidump/minidump_file_writer.cc
diff --git a/minidump/minidump_file_writer.cc b/minidump/minidump_file_writer.cc
index 88986561c31ce2c5c4c03d211b9acd52d8b087f2..ff3531918eb13f9e6681f6c65e51b1669ef70165 100644
--- a/minidump/minidump_file_writer.cc
+++ b/minidump/minidump_file_writer.cc
@@ -17,6 +17,7 @@
 #include "base/logging.h"
 #include "minidump/minidump_crashpad_info_writer.h"
 #include "minidump/minidump_exception_writer.h"
+#include "minidump/minidump_handle_writer.h"
 #include "minidump/minidump_memory_info_writer.h"
 #include "minidump/minidump_memory_writer.h"
 #include "minidump/minidump_misc_info_writer.h"
@@ -108,6 +109,13 @@ void MinidumpFileWriter::InitializeFromSnapshot(
     AddStream(memory_info_list.Pass());
   }
 
+  std::vector<HandleSnapshot> handles_snapshot = process_snapshot->Handles();
+  if (!handles_snapshot.empty()) {
+    auto handle_data_writer = make_scoped_ptr(new MinidumpHandleDataWriter());
+    handle_data_writer->InitializeFromSnapshot(handles_snapshot);
+    AddStream(handle_data_writer.Pass());
+  }
+
   memory_list->AddFromSnapshot(process_snapshot->ExtraMemory());
 
   AddStream(memory_list.Pass());