Support exposing Mojo services between render frames, render threads, and their respective hosts.

content/common/web_ui_setup.mojom

Index: content/common/web_ui_setup.mojom
diff --git a/content/common/web_ui_setup.mojom b/content/common/web_ui_setup.mojom
deleted file mode 100644
index d61d96ceddfe44f2865b8fb3c563cab99666daf7..0000000000000000000000000000000000000000
--- a/content/common/web_ui_setup.mojom
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-module content {
-
-[Peer=WebUISetup]
-interface WebUISetupClient {
-};
-
-[Peer=WebUISetupClient]
-interface WebUISetup {
-  SetWebUIHandle(int32 view_routing_id, handle<message_pipe> web_ui_handle);
-};
-
-}