CloseMultipleNowOrOnExec(): promote out of test.

This function will be useful in upcoming non-test code. Because the
first Crashpad client that wants a Crashpad handler will now be
responsible for starting the handler process, this will prevent file
descriptors from leaking to the handler process.

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/819483002

util/posix/close_multiple.cc

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "util/test/posix/close_multiple.h"
+#include "util/posix/close_multiple.h"
 
 #include <dirent.h>
 #include <errno.h>

util/posix/close_multiple.h

@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef CRASHPAD_UTIL_TEST_POSIX_CLOSE_MULTIPLE_H_
-#define CRASHPAD_UTIL_TEST_POSIX_CLOSE_MULTIPLE_H_
+#ifndef CRASHPAD_UTIL_POSIX_CLOSE_MULTIPLE_H_
+#define CRASHPAD_UTIL_POSIX_CLOSE_MULTIPLE_H_
 
 namespace crashpad {
 
@@ -41,4 +41,4 @@ void CloseMultipleNowOrOnExec(int fd, int preserve_fd);
 
 }  // namespace crashpad
 
-#endif  // CRASHPAD_UTIL_TEST_POSIX_CLOSE_MULTIPLE_H_
+#endif  // CRASHPAD_UTIL_POSIX_CLOSE_MULTIPLE_H_

util/test/multiprocess_exec.cc

@@ -21,8 +21,8 @@
 #include "base/posix/eintr_wrapper.h"
 #include "gtest/gtest.h"
 #include "util/misc/scoped_forbid_return.h"
+#include "util/posix/close_multiple.h"
 #include "util/test/errors.h"
-#include "util/test/posix/close_multiple.h"
 
 namespace crashpad {
 namespace test {

util/util.gyp

@@ -99,6 +99,8 @@
         'numeric/in_range_cast.h',
         'numeric/int128.h',
         'numeric/safe_assignment.h',
+        'posix/close_multiple.cc',
+        'posix/close_multiple.h',
         'posix/close_stdio.cc',
         'posix/close_stdio.h',
         'posix/drop_privileges.cc',
@@ -210,8 +212,6 @@
         'test/multiprocess.h',
         'test/multiprocess_exec.cc',
         'test/multiprocess_exec.h',
-        'test/posix/close_multiple.cc',
-        'test/posix/close_multiple.h',
       ],
       'conditions': [
         ['OS=="mac"', {