ipc: Change the timing of the construction of the attachment broker.

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 071d96d207d0c424f5a0976a885a1dc3f96e7a4e..4c6107ff7ee45c56fc36247fb3812e423c487bce 100644
--- a/content/common/child_process_host_impl.cc
+++ b/content/common/child_process_host_impl.cc
@@ -111,6 +111,14 @@ ChildProcessHostImpl::ChildProcessHostImpl(ChildProcessHostDelegate* delegate)
 #if defined(OS_WIN)
   AddFilter(new FontCacheDispatcher());
 #endif
+#if USE_ATTACHMENT_BROKER
+  // Ensure that the privileged attachment broker gets constructed early in the
+  // life cycle of making a child process. This ensures that when a test is

[Tom Sepez, 2015/09/25 15:37:34]

nit: just "life cycle of a child process".

[erikchen, 2015/09/25 19:27:04]

Done.

+  // being run one of the single process modes, the global attachment broker is

[Tom Sepez, 2015/09/25 15:37:34]

nit: "being run in one of the"

[erikchen, 2015/09/25 19:27:04]

Done.

+  // the privileged attachment broker, rather than an unprivileged attachment
+  // broker.
+  GetAttachmentBroker();
+#endif
 }
 
 ChildProcessHostImpl::~ChildProcessHostImpl() {