Add policy indicator for protocol handlers

chrome/browser/custom_handlers/protocol_handler_registry.cc

 // 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.
 
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 515 matching lines @@
     const ProtocolHandler& handler) const {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   const ProtocolHandlerList* handlers = GetHandlerList(handler.protocol());
   if (!handlers) {
     return false;
   }
   return std::find(handlers->begin(), handlers->end(), handler) !=
       handlers->end();
 }
 
+bool ProtocolHandlerRegistry::IsRegisteredByUser(
+    const ProtocolHandler& handler) {
+  return HandlerExists(handler, &user_protocol_handlers_);
+}
+
 bool ProtocolHandlerRegistry::IsIgnored(const ProtocolHandler& handler) const {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   ProtocolHandlerList::const_iterator i;
   for (i = ignored_protocol_handlers_.begin();
        i != ignored_protocol_handlers_.end(); ++i) {
     if (*i == handler) {
       return true;
     }
   }
   return false;
@@ skipping 52 matching lines @@
 }
 
 void ProtocolHandlerRegistry::RemoveHandler(
     const ProtocolHandler& handler) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   ProtocolHandlerList& handlers = protocol_handlers_[handler.protocol()];
   bool erase_success = false;
   if (HandlerExists(handler, handlers) &&
       HandlerExists(handler, &user_protocol_handlers_)) {
     EraseHandler(handler, &user_protocol_handlers_);
-    if (!HandlerExists(handler, &policy_protocol_handlers_)) {
-      erase_success = true;
+    erase_success = true;
+    if (!HandlerExists(handler, &policy_protocol_handlers_))
       EraseHandler(handler, &protocol_handlers_);
-    }
   }
   ProtocolHandlerMap::iterator q = default_handlers_.find(handler.protocol());
   if (erase_success && q != default_handlers_.end() && q->second == handler) {
     // Make the new top handler in the list the default.
     if (!handlers.empty()) {
       // NOTE We pass a copy because SetDefault() modifies handlers.
       SetDefault(ProtocolHandler(handlers[0]));
     } else {
       BrowserThread::PostTask(
           BrowserThread::IO, FROM_HERE,
@@ skipping 322 matching lines @@
 
 scoped_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
 ProtocolHandlerRegistry::CreateJobInterceptorFactory() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   // this is always created on the UI thread (in profile_io's
   // InitializeOnUIThread. Any method calls must be done
   // on the IO thread (this is checked).
   return scoped_ptr<JobInterceptorFactory>(
       new JobInterceptorFactory(io_thread_delegate_.get()));
 }