Functionality to allow blacklist and whitelist of custom schemes

net/base/network_delegate.h

Index: net/base/network_delegate.h
diff --git a/net/base/network_delegate.h b/net/base/network_delegate.h
index 07371371054719555164ca380a1b1cd0c5fc53e8..133407c4e3f0a2f904656a163a5799a816c7e593 100644
--- a/net/base/network_delegate.h
+++ b/net/base/network_delegate.h
@@ -55,6 +55,15 @@ class NET_EXPORT NetworkDelegate : public base::NonThreadSafe {
   };
   typedef base::Callback<void(AuthRequiredResponse)> AuthCallback;
 
+  // Indicates if the URL was defined in blacklist, in whitelist or is not

[bartfab (slow), 2016/03/10 13:49:42]

Nit: URLs are not "defined" in the blacklist/whitelist. They may match the
blacklist/whitelist.

+  // present in either lists as defined in URLBlacklist and URLWhitelist
+  // policies.
+  enum URLBlacklistState {
+    URL_IN_WHITELIST,
+    URL_IN_BLACKLIST,
+    URL_NEUTRAL_STATE,
+  };
+
   virtual ~NetworkDelegate() {}
 
   // Notification interface called by the network stack. Note that these
@@ -119,6 +128,10 @@ class NET_EXPORT NetworkDelegate : public base::NonThreadSafe {
       const GURL& target_url,
       const GURL& referrer_url) const;
 
+  // This function is to be used to check if the |url| is defined in
+  // blacklist or whitelist policy.
+  virtual URLBlacklistState GetURLBlacklistState(const GURL& url) const;
+
  private:
   // This is the interface for subclasses of NetworkDelegate to implement. These
   // member functions will be called by the respective public notification