Sandbox Worker process on the Mac.

chrome/renderer/renderer_main_platform_delegate_mac.mm

Index: chrome/renderer/renderer_main_platform_delegate_mac.mm
diff --git a/chrome/renderer/renderer_main_platform_delegate_mac.mm b/chrome/renderer/renderer_main_platform_delegate_mac.mm
index 4a5475e35365fd772ee56f5caba5876794901e4c..014a7d2be3225dc927938f51ee03fa74fbee5ead 100644
--- a/chrome/renderer/renderer_main_platform_delegate_mac.mm
+++ b/chrome/renderer/renderer_main_platform_delegate_mac.mm
@@ -6,6 +6,8 @@
 
 #import <Cocoa/Cocoa.h>
 
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/sandbox_mac.h"
 #include "third_party/WebKit/WebKit/mac/WebCoreSupport/WebSystemInterface.h"
 
@@ -24,9 +26,6 @@ void RendererMainPlatformDelegate::PlatformInitialize() {
   // Load WebKit system interfaces.
   InitWebCoreSystemInterface();
 
-  // Warmup APIs before turning on the Sandbox.
-  sandbox::SandboxWarmup();
-
   if (![NSThread isMultiThreaded]) {
     NSString* string = @"";
     [NSThread detachNewThreadSelector:@selector(length)
@@ -47,7 +46,10 @@ bool RendererMainPlatformDelegate::InitSandboxTests(bool no_sandbox) {
 }
 
 bool RendererMainPlatformDelegate::EnableSandbox() {
-  return sandbox::EnableSandbox();
+  CommandLine* parsed_command_line = CommandLine::ForCurrentProcess();
+  SandboxInitWrapper sandbox_wrapper;
+  return sandbox_wrapper.InitializeSandbox(*parsed_command_line,
+                                           switches::kRendererProcess);
 }
 
 void RendererMainPlatformDelegate::RunSandboxTests() {