Change media galleries to external file system type to add toURL support

webkit/browser/fileapi/file_system_context.cc

Index: webkit/browser/fileapi/file_system_context.cc
diff --git a/webkit/browser/fileapi/file_system_context.cc b/webkit/browser/fileapi/file_system_context.cc
index 3c75a8bc47f37834fac65944cf3e2643e972a7a0..f6e7df3a2d6d532075a406f9c61f4b7c8ecd2b4a 100644
--- a/webkit/browser/fileapi/file_system_context.cc
+++ b/webkit/browser/fileapi/file_system_context.cc
@@ -78,15 +78,17 @@ int FileSystemContext::GetPermissionPolicy(FileSystemType type) {
       return FILE_PERMISSION_READ_ONLY |
              FILE_PERMISSION_USE_FILE_PERMISSION;
 
-    // Following types are only accessed via IsolatedFileSystem, and
-    // don't have their own permission policies.
     case kFileSystemTypeDeviceMedia:
-    case kFileSystemTypeDragged:
-    case kFileSystemTypeForTransientFile:
     case kFileSystemTypeIphoto:
     case kFileSystemTypeItunes:
     case kFileSystemTypeNativeMedia:
     case kFileSystemTypePicasa:
+      return FILE_PERMISSION_USE_FILE_PERMISSION;
+
+    // Following types are only accessed via IsolatedFileSystem, and
+    // don't have their own permission policies.
+    case kFileSystemTypeDragged:
+    case kFileSystemTypeForTransientFile:
     case kFileSystemTypePluginPrivate:
       return FILE_PERMISSION_ALWAYS_DENY;