win: fixes for Windows x64

util/net/http_multipart_builder.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 28 matching lines @@
   // nonalphanumeric characters. See
   // blink/Source/platform/network/FormDataBuilder.cpp
   // blink::FormDataBuilder::generateUniqueBoundaryString().
   //
   // This implementation produces a 56-character string with over 190 bits of
   // randomness (62^32 > 2^190).
   std::string boundary_string = "---MultipartBoundary-";
   for (int index = 0; index < 32; ++index) {
     const char kCharacters[] =
         "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-    int random_value = base::RandInt(0, strlen(kCharacters) - 1);
+    int random_value =
+        base::RandInt(0, static_cast<int>(strlen(kCharacters)) - 1);
     boundary_string += kCharacters[random_value];
   }
   boundary_string += "---";
   return boundary_string;
 }
 
 // Escapes the specified name to be suitable for the name field of a
 // form-data part.
 std::string EncodeMIMEField(const std::string& name) {
   // RFC 2388 §3 says to encode non-ASCII field names according to RFC 2047, but
@@ skipping 129 matching lines @@
   auto data_it = form_data_.find(key);
   if (data_it != form_data_.end())
     form_data_.erase(data_it);
 
   auto file_it = file_attachments_.find(key);
   if (file_it != file_attachments_.end())
     file_attachments_.erase(file_it);
 }
 
 }  // namespace crashpad