Move/replace/rename URL-based extension getters from ExtensionService to/in ExtensionSet.

chrome/browser/extensions/extension_navigation_observer.cc

 // Copyright (c) 2011 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/extensions/extension_navigation_observer.h"
 
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/browser/tab_contents/navigation_controller.h"
 #include "content/browser/tab_contents/navigation_entry.h"
@@ skipping 33 matching lines @@
     NavigationController* nav_controller) {
   // Bail out if we're already running a prompt.
   if (!in_progress_prompt_extension_id_.empty())
     return;
 
   NavigationEntry* nav_entry = nav_controller->GetActiveEntry();
   if (!nav_entry)
     return;
 
   ExtensionService* extension_service = profile_->GetExtensionService();
-  const Extension* extension =
-      extension_service->GetDisabledExtensionByWebExtent(nav_entry->url());
+  const Extension* extension = extension_service->disabled_extensions()->
+      GetByWebExtent(ExtensionURLInfo(nav_entry->url()));
   if (!extension)
     return;
 
   // Try not to repeatedly prompt the user about the same extension.
   if (prompted_extensions_.find(extension->id()) != prompted_extensions_.end())
     return;
   prompted_extensions_.insert(extension->id());
 
   ExtensionPrefs* extension_prefs = extension_service->extension_prefs();
   if (extension_prefs->DidExtensionEscalatePermissions(extension->id())) {
@@ skipping 33 matching lines @@
   in_progress_prompt_extension_id_ = "";
   in_progress_prompt_navigation_controller_ = NULL;
   extension_install_ui_.reset();
 
   std::string histogram_name = user_initiated ?
       "Extensions.Permissions_ReEnableCancel" :
       "Extensions.Permissions_ReEnableAbort";
   ExtensionService::RecordPermissionMessagesHistogram(
       extension, histogram_name.c_str());
 }