win: Get Crashpad compiling under VS2015

util/win/exception_handler_server.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,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #include "util/win/exception_handler_server.h"
 
 #include <string.h>
 
 #include "base/logging.h"
+#include "base/numerics/safe_conversions.h"
 #include "base/rand_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "minidump/minidump_file_writer.h"
 #include "snapshot/crashpad_info_client_options.h"
 #include "snapshot/win/process_snapshot_win.h"
 #include "util/file/file_writer.h"
 #include "util/misc/tri_state.h"
 #include "util/misc/uuid.h"
 #include "util/win/registration_protocol_win.h"
@@ skipping 314 matching lines @@
   // we're running as a different user, it may be that we will fail to open
   // the process, but the client will be able to, so we make a second attempt
   // having impersonated the client.
   HANDLE client_process = OpenProcess(
       kXPProcessAllAccess, false, message.registration.client_process_id);
   if (!client_process) {
     if (!ImpersonateNamedPipeClient(service_context.pipe())) {
       PLOG(ERROR) << "ImpersonateNamedPipeClient";
       return false;
     }
-    HANDLE client_process = OpenProcess(
+    client_process = OpenProcess(
         kXPProcessAllAccess, false, message.registration.client_process_id);
     PCHECK(RevertToSelf());
     if (!client_process) {
       LOG(ERROR) << "failed to open " << message.registration.client_process_id;
       return false;
     }
   }
 
   internal::ClientData* client;
   {
     base::AutoLock lock(*service_context.clients_lock());
     client =
         new internal::ClientData(service_context.port(),
                                  service_context.delegate(),
                                  ScopedKernelHANDLE(client_process),
                                  message.registration.exception_information,
                                  &OnDumpEvent,
                                  &OnProcessEnd);
     service_context.clients()->insert(client);
   }
 
   // Duplicate the events back to the client so they can request a dump.
   ServerToClientMessage response;
-  response.registration.request_report_event = reinterpret_cast<uint32_t>(
-      DuplicateEvent(client->process(), client->dump_requested_event()));
+  response.registration.request_report_event =
+      base::checked_cast<uint32_t>(reinterpret_cast<uintptr_t>(
+          DuplicateEvent(client->process(), client->dump_requested_event())));
 
   if (!LoggingWriteFile(service_context.pipe(), &response, sizeof(response)))
     return false;
 
   return false;
 }
 
 // static
 DWORD __stdcall ExceptionHandlerServer::PipeServiceProc(void* ctx) {
   internal::PipeServiceContext* service_context =
@@ skipping 32 matching lines @@
 void __stdcall ExceptionHandlerServer::OnProcessEnd(void* ctx, BOOLEAN) {
   // This function is executed on the thread pool.
   internal::ClientData* client = reinterpret_cast<internal::ClientData*>(ctx);
   base::AutoLock lock(*client->lock());
 
   // Post back to the main thread to have it delete this client record.
   PostQueuedCompletionStatus(client->port(), 0, ULONG_PTR(client), nullptr);
 }
 
 }  // namespace crashpad