win: Disable some more warnings when not building with Crashpad's common.gypi

snapshot/win/process_reader_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 68 matching lines @@
 
   if (!NT_SUCCESS(status)) {
     NTSTATUS_LOG(ERROR, status) << "NtQuerySystemInformation";
     return nullptr;
   }
 
   process_types::SYSTEM_PROCESS_INFORMATION<Traits>* process =
       reinterpret_cast<process_types::SYSTEM_PROCESS_INFORMATION<Traits>*>(
           buffer->get());
   DWORD process_id = GetProcessId(process_handle);
-  do {
+  for (;;) {
     if (process->UniqueProcessId == process_id)
       return process;
-  } while (process = NextProcess(process));
+    process = NextProcess(process);
+    if (!process)
+      break;
+  }
 
   LOG(ERROR) << "process " << process_id << " not found";
   return nullptr;
 }
 
 template <class Traits>
 HANDLE OpenThread(
     const process_types::SYSTEM_THREAD_INFORMATION<Traits>& thread_info) {
   HANDLE handle;
   ACCESS_MASK query_access =
@@ skipping 298 matching lines @@
         thread.stack_region_size = 0;
       } else {
         thread.stack_region_size = base - limit;
       }
     }
     threads_.push_back(thread);
   }
 }
 
 }  // namespace crashpad