Blink handle selection handle visibility

third_party/WebKit/Source/core/layout/compositing/CompositedSelection.h

 /*
  * Copyright (C) 2015 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 30 matching lines @@
 
 // The active selection region, containing compositing data for the selection
 // end points as well as metadata for the selection region.
 // See |WebSelection|.
 struct CompositedSelection {
     STACK_ALLOCATED();
     CompositedSelection()
         : type(NoSelection)
         , isEditable(false)
         , isEmptyTextFormControl(false)
+        , isHandleVisible(true)
     {
     }
 
     SelectionType type;
     CompositedSelectionBound start;
     CompositedSelectionBound end;
     bool isEditable;
     bool isEmptyTextFormControl;
+    bool isHandleVisible;

[aelias_OOO_until_Jul13, 2016/08/02 18:30:33]

I don't think this is needed.  Just change FrameView.cpp to call
ChromeClient::clearCompositedSelection() instead of
ChromeClient::updateCompositedSelection() if Blink considers the selection
handles invisible.  This should allow you to avoid adding any code in either CC
or the browser.

 };
 
 } // namespace blink
 
 #endif // CompositedSelection_h