Bug 1326245: Tell the child processes when we're in safe mode. r=smaug

MozReview-Commit-ID: EiuULIb5L6A

--HG--
extra : rebase_source : deee93731ec6635340cf7c3d665833c306912691

dom/ipc/ContentParent.cpp

@@ -1870,6 +1870,10 @@ ContentParent::LaunchSubprocess(ProcessPriority aInitialPriority /* = PROCESS_PR
   extraArgs.push_back("-stringPrefs");
   extraArgs.push_back(stringPrefs.str());
 
+  if (gSafeMode) {
+    extraArgs.push_back("-safeMode");
+  }
+
   if (!mSubprocess->LaunchAndWaitForProcessHandle(extraArgs)) {
     MarkAsDead();
     return false;

dom/ipc/ContentProcess.cpp

@@ -197,6 +197,9 @@ ContentProcess::Init(int aArgc, char* aArgv[])
       SET_PREF_PHASE(END_INIT_PREFS);
       foundStringPrefs = true;
     }
+    else if (!strcmp(aArgv[idx], "-safeMode")) {
+      gSafeMode = true;
+    }
 
 #if defined(XP_MACOSX) && defined(MOZ_CONTENT_SANDBOX)
     else if (!strcmp(aArgv[idx], "-profile")) {