Move c/c/e/extension_set to top-level extensions/

chrome/browser/extensions/extension_special_storage_policy.cc

Index: chrome/browser/extensions/extension_special_storage_policy.cc
diff --git a/chrome/browser/extensions/extension_special_storage_policy.cc b/chrome/browser/extensions/extension_special_storage_policy.cc
index 8cf296d638f15832d671b671ae3e2ff96147723d..ee83ce9ec8274f7c11aecc340d0ed3af2c7a4f6a 100644
--- a/chrome/browser/extensions/extension_special_storage_policy.cc
+++ b/chrome/browser/extensions/extension_special_storage_policy.cc
@@ -86,7 +86,8 @@ bool ExtensionSpecialStoragePolicy::NeedsProtection(
   return extension->is_hosted_app() && !extension->from_bookmark();
 }
 
-const ExtensionSet* ExtensionSpecialStoragePolicy::ExtensionsProtectingOrigin(
+const extensions::ExtensionSet*
+ExtensionSpecialStoragePolicy::ExtensionsProtectingOrigin(
     const GURL& origin) {
   base::AutoLock locker(lock_);
   return protected_apps_.ExtensionsContaining(origin);
@@ -229,15 +230,15 @@ bool ExtensionSpecialStoragePolicy::SpecialCollection::Contains(
   return !ExtensionsContaining(origin)->is_empty();
 }
 
-const ExtensionSet*
+const extensions::ExtensionSet*
 ExtensionSpecialStoragePolicy::SpecialCollection::ExtensionsContaining(
     const GURL& origin) {
   CachedResults::const_iterator found = cached_results_.find(origin);
   if (found != cached_results_.end())
     return found->second;
 
-  ExtensionSet* result = new ExtensionSet();
-  for (ExtensionSet::const_iterator iter = extensions_.begin();
+  extensions::ExtensionSet* result = new extensions::ExtensionSet();
+  for (extensions::ExtensionSet::const_iterator iter = extensions_.begin();
        iter != extensions_.end(); ++iter) {
     if ((*iter)->OverlapsWithOrigin(origin))
       result->Insert(*iter);