Add policy indicator for protocol handlers

chrome/browser/custom_handlers/protocol_handler_registry.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CUSTOM_HANDLERS_PROTOCOL_HANDLER_REGISTRY_H_
 #define CHROME_BROWSER_CUSTOM_HANDLERS_PROTOCOL_HANDLER_REGISTRY_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 183 matching lines @@
   // registry.
   void GetRegisteredProtocols(std::vector<std::string>* output) const;
 
   // Returns true if we allow websites to register handlers for the given
   // scheme.
   bool CanSchemeBeOverridden(const std::string& scheme) const;
 
   // Returns true if an identical protocol handler has already been registered.
   bool IsRegistered(const ProtocolHandler& handler) const;
 
+  // Returns true if an identical protocol handler has already been registered
+  // by user.

[bartfab (slow), 2014/09/01 14:56:43]

Nit: s/user/the user/

[kaliamoorthi, 2014/09/01 15:11:58]

Done.

+  bool IsRegisteredByUser(const ProtocolHandler& handler);
+
+  // Returns true, if the scheme has at-least one handler that is registered by

[bartfab (slow), 2014/09/01 14:56:43]

Nit 1: s/,//
Nit 2: s/at-least/at least/

[kaliamoorthi, 2014/09/01 15:11:58]

Done.

+  // policy.
+  bool HasPolicyRegisteredHandler(const std::string& scheme);
+
   // Returns true if an identical protocol handler is being ignored.
   bool IsIgnored(const ProtocolHandler& handler) const;
 
   // Returns true if an equivalent protocol handler has already been registered.
   bool HasRegisteredEquivalent(const ProtocolHandler& handler) const;
 
   // Returns true if an equivalent protocol handler is being ignored.
   bool HasIgnoredEquivalent(const ProtocolHandler& handler) const;
 
   // Causes the given protocol handler to not be ignored anymore.
@@ skipping 154 matching lines @@
 
   // Copy of registry data for use on the IO thread. Changes to the registry
   // are posted to the IO thread where updates are applied to this object.
   scoped_refptr<IOThreadDelegate> io_thread_delegate_;
 
   DefaultClientObserverList default_client_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(ProtocolHandlerRegistry);
 };
 #endif  // CHROME_BROWSER_CUSTOM_HANDLERS_PROTOCOL_HANDLER_REGISTRY_H_