Improve process launch handle sharing API.

content/common/sandbox_win.cc

Index: content/common/sandbox_win.cc
diff --git a/content/common/sandbox_win.cc b/content/common/sandbox_win.cc
index 3963c6e33d9f211c96d5a76046f72d077398b38b..c76fc0e568c6c0ad10f97942e6ea14f8f1739e1d 100644
--- a/content/common/sandbox_win.cc
+++ b/content/common/sandbox_win.cc
@@ -720,7 +720,7 @@ bool InitTargetServices(sandbox::TargetServices* target_services) {
 sandbox::ResultCode StartSandboxedProcess(
     SandboxedProcessLauncherDelegate* delegate,
     base::CommandLine* cmd_line,
-    const base::HandlesToInheritVector& handles_to_inherit,
+    const std::vector<HANDLE>& handles_to_inherit,
     base::Process* process) {
   DCHECK(delegate);
   const base::CommandLine& browser_command_line =
@@ -741,12 +741,7 @@ sandbox::ResultCode StartSandboxedProcess(
       browser_command_line.HasSwitch(switches::kNoSandbox) ||
       cmd_line->HasSwitch(switches::kNoSandbox)) {
     base::LaunchOptions options;
-
-    base::HandlesToInheritVector handles = handles_to_inherit;
-    if (!handles_to_inherit.empty()) {
-      options.inherit_handles = true;
-      options.handles_to_inherit = &handles;
-    }
+    options.handles_to_inherit = handles_to_inherit;
     base::Process unsandboxed_process = base::LaunchProcess(*cmd_line, options);
 
     *process = std::move(unsandboxed_process);