win: fixes for Windows x64

minidump/minidump_simple_string_dictionary_writer_test.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 13 matching lines @@
 #include "util/file/string_file.h"
 
 namespace crashpad {
 namespace test {
 namespace {
 
 const MinidumpSimpleStringDictionary* MinidumpSimpleStringDictionaryAtStart(
     const std::string& file_contents,
     size_t count) {
   MINIDUMP_LOCATION_DESCRIPTOR location_descriptor;
-  location_descriptor.DataSize =
+  location_descriptor.DataSize = static_cast<uint32_t>(
       sizeof(MinidumpSimpleStringDictionary) +
-      count * sizeof(MinidumpSimpleStringDictionaryEntry);
+      count * sizeof(MinidumpSimpleStringDictionaryEntry));
   location_descriptor.Rva = 0;
   return MinidumpWritableAtLocationDescriptor<MinidumpSimpleStringDictionary>(
       file_contents, location_descriptor);
 }
 
 TEST(MinidumpSimpleStringDictionaryWriter, EmptySimpleStringDictionary) {
   StringFile string_file;
 
   MinidumpSimpleStringDictionaryWriter dictionary_writer;
 
@@ skipping 231 matching lines @@
             MinidumpUTF8StringAtRVAAsString(string_file.string(),
                                             dictionary->entries[2].key));
   EXPECT_EQ(kValue2,
             MinidumpUTF8StringAtRVAAsString(string_file.string(),
                                             dictionary->entries[2].value));
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad