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

ui/views/widget/widget.cc

Index: ui/views/widget/widget.cc
diff --git a/ui/views/widget/widget.cc b/ui/views/widget/widget.cc
index 64f5541bb811e63f509079eb3d18a0249a2244ec..56dd97888adde67806746b7988922472ed41c0aa 100644
--- a/ui/views/widget/widget.cc
+++ b/ui/views/widget/widget.cc
@@ -530,6 +530,10 @@ void Widget::SetVisibilityChangedAnimationsEnabled(bool value) {
   native_widget_->SetVisibilityChangedAnimationsEnabled(value);
 }
 
+void Widget::SetInterceptAllKeys(bool want_all_keys) {
+  native_widget_->SetInterceptAllKeys(want_all_keys);
+}
+
 Widget::MoveLoopResult Widget::RunMoveLoop(
     const gfx::Vector2d& drag_offset,
     MoveLoopSource source,