Algorithm for deciding if a frame's selection should be hidden

third_party/WebKit/Source/core/editing/FrameSelection.h

Index: third_party/WebKit/Source/core/editing/FrameSelection.h
diff --git a/third_party/WebKit/Source/core/editing/FrameSelection.h b/third_party/WebKit/Source/core/editing/FrameSelection.h
index a145ccb7ecb15fee9af43359cef2c300884a8a60..06b9964927accbb851f018d3b14e1daf93a9aed9 100644
--- a/third_party/WebKit/Source/core/editing/FrameSelection.h
+++ b/third_party/WebKit/Source/core/editing/FrameSelection.h
@@ -32,7 +32,6 @@
 #include "core/dom/Range.h"
 #include "core/dom/SynchronousMutationObserver.h"
 #include "core/editing/EphemeralRange.h"
-#include "core/editing/LayoutSelection.h"
 #include "core/editing/VisiblePosition.h"
 #include "core/editing/VisibleSelection.h"
 #include "core/editing/iterators/TextIteratorBehavior.h"
@@ -131,6 +130,7 @@ class CORE_EXPORT FrameSelection final
       FrameSelection::SetSelectionOptions = kCloseTyping | kClearTypingStyle);
   void SelectAll();
   void Clear();
+  bool IsHidden();
 
   // TODO(tkent): These two functions were added to fix crbug.com/695211 without
   // changing focus behavior. Once we fix crbug.com/690272, we can remove these
@@ -243,7 +243,7 @@ class CORE_EXPORT FrameSelection final
       RevealExtentOption = kDoNotRevealExtent);
   void SetSelectionFromNone();
 
-  void UpdateAppearance(LayoutSelection::PaintHint);
+  void UpdateAppearance();
   bool ShouldShowBlockCursor() const;
   void SetShouldShowBlockCursor(bool);
 
@@ -309,7 +309,6 @@ class CORE_EXPORT FrameSelection final
 
   const Member<FrameCaret> frame_caret_;
   bool use_secure_keyboard_entry_when_active_ = false;
-  bool text_control_focused_ = false;
 };
 
 }  // namespace blink