Apply renderer sandbox to utility processes.

content/public/common/main_function_params.h

Index: content/public/common/main_function_params.h
diff --git a/content/public/common/main_function_params.h b/content/public/common/main_function_params.h
index 8a2b826acd82af22c11cfdcb3443b2c3067cc6aa..e2756e7c098b7784dc21de0f07fc39face0b6851 100644
--- a/content/public/common/main_function_params.h
+++ b/content/public/common/main_function_params.h
@@ -33,6 +33,8 @@ struct MainFunctionParams {
         sandbox_info(NULL),
 #elif defined(OS_MACOSX)
         autorelease_pool(NULL),
+#elif defined(OS_POSIX) && !defined(OS_ANDROID)
+        zygote_child(false),
 #endif
         ui_task(NULL) {
   }
@@ -43,6 +45,8 @@ struct MainFunctionParams {
   sandbox::SandboxInterfaceInfo* sandbox_info;
 #elif defined(OS_MACOSX)
   base::mac::ScopedNSAutoreleasePool* autorelease_pool;
+#elif defined(OS_POSIX) && !defined(OS_ANDROID)
+  bool zygote_child;
 #endif
 
   // Used by InProcessBrowserTest. If non-null BrowserMain schedules this