Add more FS types and introduce type field into IsolatedContext

webkit/fileapi/file_system_context.cc

Index: webkit/fileapi/file_system_context.cc
diff --git a/webkit/fileapi/file_system_context.cc b/webkit/fileapi/file_system_context.cc
index 009c073230469eaa798e95fcf0cea74399b58ef7..ae639388dabe789128adf8ea8e86bcf37c20dda3 100644
--- a/webkit/fileapi/file_system_context.cc
+++ b/webkit/fileapi/file_system_context.cc
@@ -123,6 +123,7 @@ FileSystemMountPointProvider* FileSystemContext::GetMountPointProvider(
     case kFileSystemTypeExternal:
       return external_provider_.get();
     case kFileSystemTypeIsolated:
+    case kFileSystemTypeDragged:

[tzik, 2012/07/24 23:15:11]

Could you move this just above kFileSystemTypeUnknown?
IIUC, we are planning not to use internal filesystem type here.

[kinuko, 2012/07/25 00:05:45]

In this patch true, though it may not hold forever (as we chatted offline).  I
moved it at kFileSystemUnknown until we actually start using the internal types.

       return isolated_provider_.get();
     default:
       if (provider_map_.find(type) != provider_map_.end())