Remove unused kDefault permission.

BUG=none
TEST=existing


Review URL: http://codereview.chromium.org/8637019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@111232 0039d316-1c4b-4281-b951-d872f2087c98

chrome/common/extensions/extension_permission_set.h

@@ -88,9 +88,6 @@ class ExtensionAPIPermission {
     kInvalid = -2,
     kUnknown = -1,
 
-    // Default permission that every extension has implicitly.
-    kDefault,
-
     // Real permissions.
     kBackground,
     kBookmark,

chrome/common/extensions/extension_permission_set_unittest.cc

@@ -603,8 +603,6 @@ TEST(ExtensionPermissionSetTest, PermissionMessages) {
   // strings associated with them.
   ExtensionAPIPermissionSet skip;
 
-  skip.insert(ExtensionAPIPermission::kDefault);
-
   // These are considered "nuisance" or "trivial" permissions that don't need
   // a prompt.
   skip.insert(ExtensionAPIPermission::kContextMenus);