Update from https://crrev.com/308331

base/process/process_win.cc

Index: base/process/process_win.cc
diff --git a/base/process/process_win.cc b/base/process/process_win.cc
index 3e0d79fa8d39dc769f79eb241efaafeee397bb0c..96556a9b1ee2f1a6b5202d628d89c96950d0029d 100644
--- a/base/process/process_win.cc
+++ b/base/process/process_win.cc
@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/process/kill.h"
 #include "base/win/windows_version.h"
 
 namespace base {
@@ -110,6 +111,18 @@ void Process::Terminate(int result_code) {
   terminate_process(Handle(), result_code);
 }
 
+bool Process::WaitForExit(int* exit_code) {
+  return WaitForExitWithTimeout(TimeDelta::FromMilliseconds(INFINITE),
+                                exit_code);
+}
+
+bool Process::WaitForExitWithTimeout(TimeDelta timeout, int* exit_code) {
+  // TODO(rvargas) crbug.com/417532: Move the implementation here.
+  if (timeout > TimeDelta::FromMilliseconds(INFINITE))
+    timeout = TimeDelta::FromMilliseconds(INFINITE);
+  return base::WaitForExitCodeWithTimeout(Handle(), exit_code, timeout);
+}
+
 bool Process::IsProcessBackgrounded() const {
   DCHECK(IsValid());
   DWORD priority = GetPriority();