Remove sandbox on Windows.

content/public/browser/content_browser_client.h

Index: content/public/browser/content_browser_client.h
diff --git a/content/public/browser/content_browser_client.h b/content/public/browser/content_browser_client.h
index 721ec566bf0349839ed937f83946cbf04614fb4d..55209454c44a3a5fa385c7acac3480299a92135f 100644
--- a/content/public/browser/content_browser_client.h
+++ b/content/public/browser/content_browser_client.h
@@ -76,10 +76,6 @@ class URLRequestContextGetter;
 class X509Certificate;
 }
 
-namespace sandbox {
-class TargetPolicy;
-}
-
 namespace ui {
 class SelectFilePolicy;
 }
@@ -740,11 +736,6 @@ class CONTENT_EXPORT ContentBrowserClient {
   // Returns the name of the dll that contains cursors and other resources.
   virtual const wchar_t* GetResourceDllName();
 
-  // This is called on the PROCESS_LAUNCHER thread before the renderer process
-  // is launched. It gives the embedder a chance to add loosen the sandbox
-  // policy.
-  virtual bool PreSpawnRenderer(sandbox::TargetPolicy* policy);
-
   // Returns the AppContainer SID for the specified sandboxed process type, or
   // empty string if this sandboxed process type does not support living inside
   // an AppContainer.