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 5cbe8faa6932fe91d10a23af756f3484c9b7c726..c65a84e7acf84be18bc9a91fcc7b847a68df966b 100644
--- a/extensions/browser/app_window/app_window.h
+++ b/extensions/browser/app_window/app_window.h
@@ -336,6 +336,10 @@ class AppWindow : public content::NotificationObserver,
   // may be false if the bit is silently switched off for security reasons.
   bool IsAlwaysOnTop() const;
 
+  // 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;
@@ -548,6 +552,10 @@ class AppWindow : public content::NotificationObserver,
   // Whether |alpha_enabled| was set in the CreateParams.
   bool requested_alpha_enabled_;
 
+  // Cached value of InterceptAllKeys property that is used to save/restore
+  // state as the window is active/loses focus.
+  bool cached_want_all_keys_;
+
   DISALLOW_COPY_AND_ASSIGN(AppWindow);
 };