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

extensions/browser/app_window/app_window.cc

Index: extensions/browser/app_window/app_window.cc
diff --git a/extensions/browser/app_window/app_window.cc b/extensions/browser/app_window/app_window.cc
index 207e34b5550d354c93a46dfc13d2fa2f0e38664a..285ca2d788ed89c4209a6df2edc23ae8ae83602a 100644
--- a/extensions/browser/app_window/app_window.cc
+++ b/extensions/browser/app_window/app_window.cc
@@ -711,6 +711,10 @@ void AppWindow::SetAlwaysOnTop(bool always_on_top) {
 
 bool AppWindow::IsAlwaysOnTop() const { return cached_always_on_top_; }
 
+void AppWindow::SetInterceptAllKeys(bool want_all_keys) {
+  native_app_window_->SetInterceptAllKeys(want_all_keys);
+}
+
 void AppWindow::WindowEventsReady() {
   can_send_events_ = true;
   SendOnWindowShownIfShown();