Remove "API proposal for chrome.app.window to intercept all keys."

extensions/browser/app_window/app_window.h

Index: extensions/browser/app_window/app_window.h
diff --git a/extensions/browser/app_window/app_window.h b/extensions/browser/app_window/app_window.h
index 4a06269bd05b5f04cba88e6d67d26d40586e0e82..f6c330d982c157d827e10d19a1d76e5db58f72a9 100644
--- a/extensions/browser/app_window/app_window.h
+++ b/extensions/browser/app_window/app_window.h
@@ -332,10 +332,6 @@ class AppWindow : public content::WebContentsDelegate,
   // Restores the always-on-top property according to |cached_always_on_top_|.
   void RestoreAlwaysOnTop();
 
-  // Set whether the window should get even reserved keys (modulo platform
-  // restrictions).
-  void SetInterceptAllKeys(bool want_all_keys);
-
   // Retrieve the current state of the app window as a dictionary, to pass to
   // the renderer.
   void GetSerializedState(base::DictionaryValue* properties) const;