On Posix, make all child processes quit when the browser dies, not just the renderers.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
===================================================================
--- content/public/common/content_switches.cc	(revision 148974)
+++ content/public/common/content_switches.cc	(working copy)
@@ -532,11 +532,6 @@
 // Causes the renderer process to throw an assertion on launch.
 const char kRendererAssertTest[]            = "renderer-assert-test";
 
-#if defined(OS_POSIX)
-// Causes the renderer process to cleanly exit via calling exit().
-const char kRendererCleanExit[]             = "renderer-clean-exit";
-#endif
-
 // On POSIX only: the contents of this flag are prepended to the renderer
 // command line. Useful values might be "valgrind" or "xterm -e gdb --args".
 const char kRendererCmdPrefix[]             = "renderer-cmd-prefix";
@@ -663,6 +658,11 @@
 const char kGraphicsModeValueCompositor[]   = "compositor";
 #endif
 
+#if defined(OS_POSIX)
+// Causes the child processes to cleanly exit via calling exit().
+const char kChildCleanExit[]                = "child-clean-exit";
+#endif
+
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 // Specify the amount the trackpad should scroll by.
 const char kScrollPixels[]                  = "scroll-pixels";