Allow the content browser client to specify a special cookie store to be

content/public/browser/content_browser_client.h

Index: content/public/browser/content_browser_client.h
===================================================================
--- content/public/browser/content_browser_client.h	(revision 255909)
+++ content/public/browser/content_browser_client.h	(working copy)
@@ -50,6 +50,7 @@
 
 namespace net {
 class CookieOptions;
+class CookieStore;
 class HttpNetworkSession;
 class NetLog;
 class SSLCertRequestInfo;
@@ -619,6 +620,12 @@
 
   // Returns true if dev channel APIs are available for plugins.
   virtual bool IsPluginAllowedToUseDevChannelAPIs();
+
+  // Returns a special cookie store to use for a given render process, or NULL
+  // if the default cookie store should be used
+  // This is called on the IO thread.
+  virtual net::CookieStore* OverrideCookieStoreForRenderProcess(
+      int render_process_id_);
 };
 
 }  // namespace content