win: Work towards getting 'minidump' to compile

minidump/minidump_writer_util.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 10 matching lines @@
 
 namespace crashpad {
 namespace internal {
 
 // static
 void MinidumpWriterUtil::AssignTimeT(uint32_t* destination, time_t source) {
   if (!base::IsValueInRangeForNumericType<uint32_t>(source)) {
     LOG(WARNING) << "timestamp " << source << " out of range";
   }
 
-  *destination = source;
+  *destination = static_cast<uint32_t>(source);
 }
 
 // static
 base::string16 MinidumpWriterUtil::ConvertUTF8ToUTF16(const std::string& utf8) {
   base::string16 utf16;
   if (!base::UTF8ToUTF16(utf8.data(), utf8.length(), &utf16)) {
     LOG(WARNING) << "string " << utf8
                  << " cannot be converted to UTF-16 losslessly";
   }
   return utf16;
@@ skipping 10 matching lines @@
                  << " will be truncated to UTF-16 length "
                  << destination_size - 1;
   }
 
   source_utf16.resize(destination_size - 1);
   c16lcpy(destination, source_utf16.c_str(), destination_size);
 }
 
 }  // namespace internal
 }  // namespace crashpad