Launches a privileged utility process.

content/common/child_process_host_impl.cc

Index: content/common/child_process_host_impl.cc
diff --git a/content/common/child_process_host_impl.cc b/content/common/child_process_host_impl.cc
index fb058d3ea987c73acc45b120de38a34ce9fafb9e..8b51d46a72f84b060e7d6d4f9e0ff9e962559d82 100644
--- a/content/common/child_process_host_impl.cc
+++ b/content/common/child_process_host_impl.cc
@@ -262,7 +262,9 @@ bool ChildProcessHostImpl::OnMessageReceived(const IPC::Message& msg) {
 }
 
 void ChildProcessHostImpl::OnChannelConnected(int32 peer_pid) {
-  if (!base::OpenPrivilegedProcessHandle(peer_pid, &peer_handle_)) {
+  if (!peer_handle_ &&
+      !base::OpenPrivilegedProcessHandle(peer_pid, &peer_handle_) &&
+      !(peer_handle_ = delegate_->GetHandle())) {

[mef, 2014/01/10 18:22:55]

What if user has cancelled the UAC, wouldn't delegate_->GetHandle be NULL? 

[Drew Haven, 2014/01/16 02:52:05]

If the user didn't accept the UAC prompt then the channel should never be
connected because there's no process to connect on the other side.  At least,
that's my guess, but my test is crashing and I need to look into it further. 
Good catch.

     NOTREACHED();
   }
   opening_channel_ = false;