Plumb file system name down from MediaFileSystemRegistry.

chrome/renderer/extensions/media_gallery_custom_bindings.cc

Index: chrome/renderer/extensions/media_gallery_custom_bindings.cc
diff --git a/chrome/renderer/extensions/media_gallery_custom_bindings.cc b/chrome/renderer/extensions/media_gallery_custom_bindings.cc
index 2b8a6d3a8c7233a651abf104443e6697284385b8..61358178a1887ea12d168d162e1cc230e462f46e 100644
--- a/chrome/renderer/extensions/media_gallery_custom_bindings.cc
+++ b/chrome/renderer/extensions/media_gallery_custom_bindings.cc
@@ -47,8 +47,8 @@ v8::Handle<v8::Value> MediaGalleryCustomBindings::GetMediaFileSystemObject(
     NOTREACHED();
     return v8::Undefined();
   }
-  std::string dirname(*v8::String::Utf8Value(args[1]));
-  if (dirname.empty()) {
+  std::string name(*v8::String::Utf8Value(args[1]));
+  if (name.empty()) {
     NOTREACHED();
     return v8::Undefined();
   }
@@ -57,13 +57,11 @@ v8::Handle<v8::Value> MediaGalleryCustomBindings::GetMediaFileSystemObject(
   const GURL origin = GURL(webframe->document().securityOrigin().toString());
   const GURL root_url =
       fileapi::GetFileSystemRootURI(origin, fileapi::kFileSystemTypeIsolated);
-  const std::string fsname = fileapi::GetIsolatedFileSystemName(origin, fsid);
-  const std::string url = base::StringPrintf("%s%s/%s/",
+  const std::string url = base::StringPrintf("%s%s/_/",

[Lei Zhang, 2012/07/30 20:56:32]

Hard coding the '_' is a bit hacky. This has to match whatever we registered
with in MediaFileSystemRegistry::RegisterPathAsFileSystem(). Add a comment for
now?

[vandebo (ex-Chrome), 2012/07/31 18:27:17]

Changed to a constant.

                                              root_url.spec().c_str(),
-                                             fsid.c_str(),
-                                             dirname.c_str());
+                                             fsid.c_str());
   return webframe->createFileSystem(WebKit::WebFileSystem::TypeIsolated,
-                                    WebKit::WebString::fromUTF8(fsname),
+                                    WebKit::WebString::fromUTF8(name),
                                     WebKit::WebString::fromUTF8(url));
 }