win: Make reading NT_IMAGE_HEADERS work cross-bitness

snapshot/win/crashpad_snapshot_test_crashing_child.cc

Index: snapshot/win/crashpad_snapshot_test_crashing_child.cc
diff --git a/snapshot/win/crashpad_snapshot_test_crashing_child.cc b/snapshot/win/crashpad_snapshot_test_crashing_child.cc
index d74f6a62bddc3ac1e16aa0090a8adf4d95009fbd..7f4b8e5babaf68673ce96f3dd5111a47362009e2 100644
--- a/snapshot/win/crashpad_snapshot_test_crashing_child.cc
+++ b/snapshot/win/crashpad_snapshot_test_crashing_child.cc
@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <stdint.h>
-#include <stdlib.h>
 #include <windows.h>
 
 #include "base/logging.h"
@@ -33,7 +31,7 @@ int main(int argc, char* argv[]) {
   CHECK(client.UseHandler());
 
   HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
-  CHECK_NE(out, INVALID_HANDLE_VALUE);
+  PCHECK(out != INVALID_HANDLE_VALUE) << "GetStdHandle";
   crashpad::WinVMAddress break_address = CurrentAddress();
   crashpad::CheckedWriteFile(out, &break_address, sizeof(break_address));