Update keygen to use correct NSS slot on ChromeOS multiprofile.

content/public/browser/resource_context.h

Index: content/public/browser/resource_context.h
diff --git a/content/public/browser/resource_context.h b/content/public/browser/resource_context.h
index ba713f60f18879cea685d26be77885d86956f03a..1308d7657b9136d3c4a36a73ffb22ba4afd2dda5 100644
--- a/content/public/browser/resource_context.h
+++ b/content/public/browser/resource_context.h
@@ -5,7 +5,10 @@
 #ifndef CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_
 #define CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_
 
+#include <string>
+
 #include "base/basictypes.h"
+#include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/supports_user_data.h"
 #include "build/build_config.h"
@@ -20,6 +23,7 @@ class AppCacheService;
 namespace net {
 class ClientCertStore;
 class HostResolver;
+class KeygenHandler;
 class URLRequestContext;
 }
 
@@ -46,6 +50,14 @@ class CONTENT_EXPORT ResourceContext : public base::SupportsUserData {
   // Get platform ClientCertStore. May return NULL.
   virtual scoped_ptr<net::ClientCertStore> CreateClientCertStore();
 
+  // Create a platform KeygenHandler and pass it to |callback|. The |callback|
+  // may be run synchronously.
+  virtual void CreateKeygenHandler(
+      uint32 key_size_in_bits,
+      const std::string& challenge_string,
+      const GURL& url,
+      const base::Callback<void(scoped_ptr<net::KeygenHandler>)>& callback);
+
   // Returns true if microphone access is allowed for |origin|. Used to
   // determine what level of authorization is given to |origin| to access
   // resource metadata.