Start work on connecting to RPC endpoint

Co-Authored-By: Antonio Scandurra <me@as-cii.com>

gpui/src/app.rs

@@ -2,7 +2,7 @@ use crate::{
     elements::ElementBox,
     executor,
     keymap::{self, Keystroke},
-    platform::{self, PromptLevel, WindowOptions},
+    platform::{self, Platform, PromptLevel, WindowOptions},
     presenter::Presenter,
     util::{post_inc, timeout},
     AssetCache, AssetSource, ClipboardItem, FontCache, PathPromptOptions, TextLayoutCache,
@@ -412,6 +412,10 @@ impl AsyncAppContext {
         self.update(|cx| cx.add_model(build_model))
     }
 
+    pub fn platform(&self) -> Arc<dyn Platform> {
+        self.0.borrow().platform()
+    }
+
     pub fn background_executor(&self) -> Arc<executor::Background> {
         self.0.borrow().cx.background.clone()
     }