Add full support for filesystem URLs.

webkit/fileapi/sandbox_mount_point_provider.cc

Index: webkit/fileapi/sandbox_mount_point_provider.cc
diff --git a/webkit/fileapi/sandbox_mount_point_provider.cc b/webkit/fileapi/sandbox_mount_point_provider.cc
index e79624eaa791cc7accb97f7327dcb27736a2583f..f47fb1eabedd2c690316786e9a2ca3cb21a5900c 100644
--- a/webkit/fileapi/sandbox_mount_point_provider.cc
+++ b/webkit/fileapi/sandbox_mount_point_provider.cc
@@ -635,6 +635,9 @@ bool SandboxMountPointProvider::IsAllowedScheme(const GURL& url) const {
   // only if --allow-file-access-from-files flag is given.
   if (url.SchemeIs("http") || url.SchemeIs("https"))
     return true;
+  if (url.SchemeIsFileSystem())
+    return url.inner_url() && IsAllowedScheme(*url.inner_url());

[abarth-chromium, 2012/02/15 08:43:20]

I wonder if places like this should be able to check more generally for the
presence of an inner URL rather than assuming that we should consult the inner
URL iff the scheme if FileSystem.

[ericu, 2012/02/15 22:48:09]

Eventually, probably...once we decide what all we might use inner_url for.  It's
a clear possibility for view-source, but we probably don't want to implement
full generality without some idea of if we'll ever use it or not, since it will
complicate a bunch of code.

+
   for (size_t i = 0;
        i < file_system_options_.additional_allowed_schemes().size();
        ++i) {