win: Make reading CrashpadInfo work across bitness

snapshot/win/crashpad_snapshot_test_simple_annotations.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 <windows.h>
+
+#include "base/logging.h"
+#include "client/crashpad_info.h"
+#include "util/file/file_io.h"
+
+int wmain(int argc, wchar_t* argv[]) {
+  crashpad::CrashpadInfo* crashpad_info =
+      crashpad::CrashpadInfo::GetCrashpadInfo();
+
+  // This is "leaked" to crashpad_info.
+  crashpad::SimpleStringDictionary* simple_annotations =
+      new crashpad::SimpleStringDictionary();
+  simple_annotations->SetKeyValue("#TEST# pad", "break");
+  simple_annotations->SetKeyValue("#TEST# key", "value");
+  simple_annotations->SetKeyValue("#TEST# pad", "crash");
+  simple_annotations->SetKeyValue("#TEST# x", "y");
+  simple_annotations->SetKeyValue("#TEST# longer", "shorter");
+  simple_annotations->SetKeyValue("#TEST# empty_value", "");
+
+  crashpad_info->set_simple_annotations(simple_annotations);
+
+  // Tell the parent that the environment has been set up.
+  HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
+  PCHECK(out != INVALID_HANDLE_VALUE) << "GetStdHandle";
+  char c = ' ';
+  crashpad::CheckedWriteFile(out, &c, sizeof(c));
+
+  HANDLE in = GetStdHandle(STD_INPUT_HANDLE);
+  PCHECK(in != INVALID_HANDLE_VALUE) << "GetStdHandle";
+  crashpad::CheckedReadFile(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;
+}