Tidy up to enable C4800 on Windows

snapshot/win/system_snapshot_win.cc

 // Copyright 2015 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 256 matching lines @@
   if (!(features & (UINT64_C(1) << 24))) {
     return false;
   }
 
   // Call fxsave.
   __declspec(align(16)) uint32_t extended_registers[128];
   _fxsave(&extended_registers);
   uint32_t mxcsr_mask = extended_registers[7];
 
   // Test the DAZ bit.
-  return mxcsr_mask & (1 << 6);
+  return (mxcsr_mask & (1 << 6)) != 0;
 }
 
 SystemSnapshot::OperatingSystem SystemSnapshotWin::GetOperatingSystem() const {
   INITIALIZATION_STATE_DCHECK_VALID(initialized_);
   return kOperatingSystemWindows;
 }
 
 bool SystemSnapshotWin::OSServer() const {
   INITIALIZATION_STATE_DCHECK_VALID(initialized_);
   return os_server_;
@@ skipping 16 matching lines @@
 }
 
 std::string SystemSnapshotWin::MachineDescription() const {
   INITIALIZATION_STATE_DCHECK_VALID(initialized_);
   // TODO(scottmg): Not sure if there's anything sensible to put here.
   return std::string();
 }
 
 bool SystemSnapshotWin::NXEnabled() const {
   INITIALIZATION_STATE_DCHECK_VALID(initialized_);
-  return IsProcessorFeaturePresent(PF_NX_ENABLED);
+  return !!IsProcessorFeaturePresent(PF_NX_ENABLED);
 }
 
 void SystemSnapshotWin::TimeZone(DaylightSavingTimeStatus* dst_status,
                                  int* standard_offset_seconds,
                                  int* daylight_offset_seconds,
                                  std::string* standard_name,
                                  std::string* daylight_name) const {
   // This returns the current time zone status rather than the status at the
   // time of the snapshot. This differs from the Mac implementation.
   TIME_ZONE_INFORMATION time_zone_information;
   *dst_status = static_cast<DaylightSavingTimeStatus>(
       GetTimeZoneInformation(&time_zone_information));
   *standard_offset_seconds =
       (time_zone_information.Bias + time_zone_information.StandardBias) * -60;
   *daylight_offset_seconds =
       (time_zone_information.Bias + time_zone_information.DaylightBias) * -60;
   *standard_name = base::UTF16ToUTF8(time_zone_information.StandardName);
   *daylight_name = base::UTF16ToUTF8(time_zone_information.DaylightName);
 }
 
 }  // namespace internal
 }  // namespace crashpad