Allow unlimited quota for apps for FileSystem access

- allow unlimited access for apps/extensions that have "unlimited_storage" permission.
- disallow any write access that may increase the filesystem usage (i.e. copy/move/create/write).
for others.
- allow unlimit access for file:/// URIs only if --allow-file-from-files flag is given.

BUG=57211
TEST=FileSystemQuota.*

TEST=Load a remote test page and verify that it throws QUOTA_EXCEEDED_ERR (22) for any write access.
TEST=Load an app/extension page that has "unlimited_storage" permission and verify that any write access is allowed.
TEST=Disable or uninstall the app/extension and do the same.  Verify that it throws QUOTA_EXCEEDED_ERR (22) for any write access.
TEST=Launch chromium without --allow-file-from-files flag, load a local test page (with file:/// URI) and verify that it throws SECURITY_ERR (18) for requesetFileSystem.
TEST=Launch chromium with --allow-file-from-files flag and do the same. Verify that requestFileSystem returns a valid filesystem and any write access is allowed.

Review URL: http://codereview.chromium.org/3561016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@61934 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 0 deletions

diff --git a/webkit/glue/webkit_glue.cc b/webkit/glue/webkit_glue.cc
index f7f60aa..a58ff1b 100644
--- a/webkit/glue/webkit_glue.cc
+++ b/webkit/glue/webkit_glue.cc
@@ -330,6 +330,10 @@ WebKit::WebFileError PlatformFileErrorToWebFileError(
       return WebKit::WebFileErrorInvalidState;
     case base::PLATFORM_FILE_ERROR_ABORT:
       return WebKit::WebFileErrorAbort;
+    case base::PLATFORM_FILE_ERROR_SECURITY:
+      return WebKit::WebFileErrorSecurity;
+    case base::PLATFORM_FILE_ERROR_NO_SPACE:
+      return WebKit::WebFileErrorQuotaExceeded;
     default:
       return WebKit::WebFileErrorInvalidModification;
   }