Change file op |ssize_t|s to FileOperationResult

util/net/http_transport_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 103 matching lines @@
       expect_response_body += "\r\n";
       EXPECT_EQ(expect_response_body, response_body);
     } else {
       EXPECT_FALSE(success);
       EXPECT_TRUE(response_body.empty());
     }
 
     // Read until the child's stdout closes.
     std::string request;
     char buf[32];
-    ssize_t bytes_read;
+    FileOperationResult bytes_read;
     while ((bytes_read = ReadFile(ReadPipeHandle(), buf, sizeof(buf))) != 0) {
       ASSERT_GE(bytes_read, 0);
       request.append(buf, bytes_read);
     }
 
     if (request_validator_)
       request_validator_(this, request);
   }
 
   HTTPHeaders headers_;
@@ skipping 172 matching lines @@
 }
 
 TEST(HTTPTransport, Upload33k_LengthUnknown) {
   // The same as Upload33k, but without declaring Content-Length ahead of time.
   RunUpload33k(false);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad