use renamed constants

apps/files_external/lib/google.php

@@ -284,7 +284,7 @@ class Google extends \OC\Files\Storage\Common {
 				// Check if this is a Google Doc
 				if ($this->getMimeType($path) !== $file->getMimeType()) {
 					// Return unknown file size
-					$stat['size'] = \OC\Files\FREE_SPACE_UNKNOWN;
+					$stat['size'] = \OC\Files\SPACE_UNKNOWN;
 				} else {
 					$stat['size'] = $file->getFileSize();
 				}
@@ -587,4 +587,4 @@ class Google extends \OC\Files\Storage\Common {
 		return false;
 	}
 
-}
\ No newline at end of file
+}

apps/files_external/lib/webdav.php

@@ -224,7 +224,7 @@ class DAV extends \OC\Files\Storage\Common{
 				return 0;
 			}
 		} catch(\Exception $e) {
-			return \OC\Files\FREE_SPACE_UNKNOWN;
+			return \OC\Files\SPACE_UNKNOWN;
 		}
 	}
 

apps/files_sharing/lib/sharedstorage.php

@@ -391,7 +391,7 @@ class Shared extends \OC\Files\Storage\Common {
 
 	public function free_space($path) {
 		if ($path == '') {
-			return \OC\Files\FREE_SPACE_UNKNOWN;
+			return \OC\Files\SPACE_UNKNOWN;
 		}
 		$source = $this->getSourcePath($path);
 		if ($source) {

lib/connector/sabre/quotaplugin.php

@@ -51,7 +51,7 @@ class OC_Connector_Sabre_QuotaPlugin extends Sabre_DAV_ServerPlugin {
 			}
 			list($parentUri, $newName) = Sabre_DAV_URLUtil::splitPath($uri);
 			$freeSpace = \OC\Files\Filesystem::free_space($parentUri);
-			if ($freeSpace !== \OC\Files\FREE_SPACE_UNKNOWN && $length > $freeSpace) {
+			if ($freeSpace !== \OC\Files\SPACE_UNKNOWN && $length > $freeSpace) {
 				throw new Sabre_DAV_Exception_InsufficientStorage();
 			}
 		}