Run clang-modernize -use-nullptr over src/extensions/.

extensions/common/extension_set.cc

 // Copyright 2013 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 "extensions/common/extension_set.h"
 
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "extensions/common/constants.h"
@@ skipping 73 matching lines @@
 
 const Extension* ExtensionSet::GetExtensionOrAppByURL(const GURL& url) const {
   if (url.SchemeIs(kExtensionScheme))
     return GetByID(url.host());
 
   return GetHostedAppByURL(url);
 }
 
 const Extension* ExtensionSet::GetAppByURL(const GURL& url) const {
   const Extension* extension = GetExtensionOrAppByURL(url);
-  return (extension && extension->is_app()) ? extension : NULL;
+  return (extension && extension->is_app()) ? extension : nullptr;
 }
 
 const Extension* ExtensionSet::GetHostedAppByURL(const GURL& url) const {
   for (ExtensionMap::const_iterator iter = extensions_.begin();
        iter != extensions_.end(); ++iter) {
     if (iter->second->web_extent().MatchesURL(url))
       return iter->second.get();
   }
 
-  return NULL;
+  return nullptr;
 }
 
 const Extension* ExtensionSet::GetHostedAppByOverlappingWebExtent(
     const URLPatternSet& extent) const {
   for (ExtensionMap::const_iterator iter = extensions_.begin();
        iter != extensions_.end(); ++iter) {
     if (iter->second->web_extent().OverlapsWith(extent))
       return iter->second.get();
   }
 
-  return NULL;
+  return nullptr;
 }
 
 bool ExtensionSet::InSameExtent(const GURL& old_url,
                                 const GURL& new_url) const {
   return GetExtensionOrAppByURL(old_url) ==
       GetExtensionOrAppByURL(new_url);
 }
 
 const Extension* ExtensionSet::GetByID(const std::string& id) const {
   ExtensionMap::const_iterator i = extensions_.find(id);
   if (i != extensions_.end())
     return i->second.get();
   else
-    return NULL;
+    return nullptr;
 }
 
 ExtensionIdSet ExtensionSet::GetIDs() const {
   ExtensionIdSet ids;
   for (ExtensionMap::const_iterator it = extensions_.begin();
        it != extensions_.end(); ++it) {
     ids.insert(it->first);
   }
   return ids;
 }
 
 bool ExtensionSet::ExtensionBindingsAllowed(const GURL& url) const {
   if (url.SchemeIs(kExtensionScheme))
     return true;
 
   for (ExtensionMap::const_iterator it = extensions_.begin();
        it != extensions_.end(); ++it) {
     if (it->second->location() == Manifest::COMPONENT &&
         it->second->web_extent().MatchesURL(url))
       return true;
   }
 
   return false;
 }
 
 }  // namespace extensions