Close leaking FDs.

content/browser/child_process_launcher.cc

Index: content/browser/child_process_launcher.cc
diff --git a/content/browser/child_process_launcher.cc b/content/browser/child_process_launcher.cc
index f7cf77224f44e04e098f4b121c9d4f2e73c5f00d..ae5dbcb9c96a0d6c25c48d6f94fc7f90af79afd6 100644
--- a/content/browser/child_process_launcher.cc
+++ b/content/browser/child_process_launcher.cc
@@ -167,8 +167,6 @@ class ChildProcessLauncher::Context
     std::string process_type =
         cmd_line->GetSwitchValueASCII(switches::kProcessType);
     base::GlobalDescriptors::Mapping files_to_register;
-    files_to_register.push_back(std::pair<base::GlobalDescriptors::Key, int>(
-        kPrimaryIPCChannel, ipcfd));

[Jay Civelli, 2012/09/19 22:58:57]

Not sure why this was done.
The IPC FD is special and not passes as a file to register.

[Yaron, 2012/09/20 00:01:54]

Are you sure this is right? I thought we've always had this and other ports do
it as well. The same fd is also set to ipcfd_ and closed in |Notify|. Oh but
it's passed separately to |StartSandboxedProcess|?

     content::GetContentClient()->browser()->
         GetAdditionalMappedFilesForChildProcess(*cmd_line, &files_to_register);