# HG changeset patch
# User Bob Owen <bobowencode@gmail.com>
# Date 1512580728 0
#      Wed Dec 06 17:18:48 2017 +0000
# Node ID e56684aa96bd963d4b94ed69b99a0359fa0479ae
# Parent  785572419acc82b2cbdcd2e24ca59fdbf5d7255f
Use STARTF_FORCEOFFFEEDBACK flag when starting Windows child processes to prevent app starting cursor. r=jimm

diff --git a/security/sandbox/chromium/sandbox/win/src/broker_services.cc b/security/sandbox/chromium/sandbox/win/src/broker_services.cc
--- a/security/sandbox/chromium/sandbox/win/src/broker_services.cc
+++ b/security/sandbox/chromium/sandbox/win/src/broker_services.cc
@@ -346,16 +346,20 @@ ResultCode BrokerServicesBase::SpawnTarg
 
   base::win::ScopedHandle job;
   result = policy_base->MakeJobObject(&job);
   if (SBOX_ALL_OK != result)
     return result;
 
   // Initialize the startup information from the policy.
   base::win::StartupInformation startup_info;
+
+  // We don't want any child processes causing the IDC_APPSTARTING cursor.
+  startup_info.startup_info()->dwFlags |= STARTF_FORCEOFFFEEDBACK;
+
   // The liftime of |mitigations|, |inherit_handle_list| and
   // |child_process_creation| have to be at least as long as
   // |startup_info| because |UpdateProcThreadAttribute| requires that
   // its |lpValue| parameter persist until |DeleteProcThreadAttributeList| is
   // called; StartupInformation's destructor makes such a call.
   DWORD64 mitigations;
   std::vector<HANDLE> inherited_handle_list;
   DWORD child_process_creation = PROCESS_CREATION_CHILD_PROCESS_RESTRICTED;