Add a path for a web page to request the enumeration of a directory. This, t...

content/browser/renderer_host/render_view_host.cc

Index: content/browser/renderer_host/render_view_host.cc
===================================================================
--- content/browser/renderer_host/render_view_host.cc	(revision 79702)
+++ content/browser/renderer_host/render_view_host.cc	(working copy)
@@ -463,6 +463,10 @@
     policy->GrantRequestURL(process()->id(),
                             net::FilePathToFileURL(path));
     policy->GrantReadFile(process()->id(), path);
+
+    // Allow dragged directories to be enumerated by the child process.
+    // Note that we can't tell a file from a directory at this point.
+    policy->GrantReadDirectory(process()->id(), path);
   }
   Send(new DragMsg_TargetDragEnter(routing_id(), drop_data, client_pt,
                                    screen_pt, operations_allowed));
@@ -685,6 +689,20 @@
   Send(new ViewMsg_RunFileChooserResponse(routing_id(), files));
 }
 
+void RenderViewHost::DirectoryEnumerationFinished(
+    int request_id,
+    const std::vector<FilePath>& files) {
+  // Grant the security access requested to the given files.
+  for (std::vector<FilePath>::const_iterator file = files.begin();
+       file != files.end(); ++file) {
+    ChildProcessSecurityPolicy::GetInstance()->GrantReadFile(
+        process()->id(), *file);
+  }
+  Send(new ViewMsg_EnumerateDirectoryResponse(routing_id(),
+                                              request_id,
+                                              files));
+}
+
 void RenderViewHost::LoadStateChanged(const GURL& url,
                                       net::LoadState load_state,
                                       uint64 upload_position,