Add support for edit commands in OOPIFs.

third_party/WebKit/public/web/WebFrameClient.h

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 374 matching lines @@
 
     // Used to access the embedder for the InstalledApp API.
     virtual WebInstalledAppClient* installedAppClient() { return nullptr; }
 
     // Editing -------------------------------------------------------------
 
     // These methods allow the client to intercept and overrule editing
     // operations.
     virtual void didChangeSelection(bool isSelectionEmpty) { }
 
+    // This method is called in response to handleInputEvent() when the
+    // default action for the current keyboard event is not suppressed by the
+    // page, to give the embedder a chance to handle the keyboard event
+    // specially.
+    //
+    // Returns true if the keyboard event was handled by the embedder,
+    // indicating that the default action should be suppressed.
+    virtual bool handleCurrentKeyboardEvent() { return false; }
 
     // Dialogs -------------------------------------------------------------
 
     // This method opens the color chooser and returns a new WebColorChooser
     // instance. If there is a WebColorChooser already from the last time this
     // was called, it ends the color chooser by calling endChooser, and replaces
     // it with the new one. The given list of suggestions can be used to show a
     // simple interface with a limited set of choices.
 
     virtual WebColorChooser* createColorChooser(
@@ skipping 281 matching lines @@
         return WebURL();
     }
 
 protected:
     virtual ~WebFrameClient() { }
 };
 
 } // namespace blink
 
 #endif