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

content/common/render_frame_setup.mojom

Index: content/common/render_frame_setup.mojom
diff --git a/content/common/web_ui_setup.mojom b/content/common/render_frame_setup.mojom
similarity index 52%
rename from content/common/web_ui_setup.mojom
rename to content/common/render_frame_setup.mojom
index d61d96ceddfe44f2865b8fb3c563cab99666daf7..267d82a61cec496e90e91f01b2c3e76c371d487b 100644
--- a/content/common/web_ui_setup.mojom
+++ b/content/common/render_frame_setup.mojom
@@ -4,13 +4,9 @@
 
 module content {
 
-[Peer=WebUISetup]
-interface WebUISetupClient {
-};
-
-[Peer=WebUISetupClient]
-interface WebUISetup {
-  SetWebUIHandle(int32 view_routing_id, handle<message_pipe> web_ui_handle);
+interface RenderFrameSetup {
+  ConnectToInterfaceProvider(int32 view_routing_id,
+                             handle<message_pipe> interface_provider);
 };
 
 }