Update Crashpad to 8e37886d418dd042c3c7bfadac99214739ee4d98

third_party/crashpad/crashpad/snapshot/win/crashpad_snapshot_test_extra_memory_ranges.cc

 // Copyright 2016 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 25 matching lines @@
   crashpad_info->set_extra_memory_ranges(extra_ranges);
 
   // Tell the parent that the environment has been set up.
   HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
   PCHECK(out != INVALID_HANDLE_VALUE) << "GetStdHandle";
   char c = ' ';
   CheckedWriteFile(out, &c, sizeof(c));
 
   HANDLE in = GetStdHandle(STD_INPUT_HANDLE);
   PCHECK(in != INVALID_HANDLE_VALUE) << "GetStdHandle";
-  CheckedReadFile(in, &c, sizeof(c));
+  CheckedReadFileExactly(in, &c, sizeof(c));
   CHECK(c == 'd' || c == ' ');
 
   // If 'd' we crash with a debug break, otherwise exit normally.
   if (c == 'd')
     __debugbreak();
 
   return 0;
 }