Draw a NativeTextfieldViews drop location cursor.

views/controls/textfield/native_textfield_views.h

Index: views/controls/textfield/native_textfield_views.h
diff --git a/views/controls/textfield/native_textfield_views.h b/views/controls/textfield/native_textfield_views.h
index 54c13fb8bf26cd55e382c5846bca0da44c38f869..f26f5fde1ad3278b4203633783df3d9ca62b6cf1 100644
--- a/views/controls/textfield/native_textfield_views.h
+++ b/views/controls/textfield/native_textfield_views.h
@@ -181,6 +181,9 @@ class NativeTextfieldViews : public View,
   // Repaint the cursor.
   void RepaintCursor();
 
+  // Returns the bounds of character at the current cursor.
+  gfx::Rect GetCursorBounds(size_t cursor_pos) const;
+
   // Update the cursor_bounds and text_offset.
   void UpdateCursorBoundsAndTextOffset();
 
@@ -241,15 +244,18 @@ class NativeTextfieldViews : public View,
   // The x offset for the text to be drawn, without insets;
   int text_offset_;
 
-  // Cursor's bounds in the textfield's coordinates.
-  gfx::Rect cursor_bounds_;
-
   // True if the textfield is in insert mode.
   bool insert_;
 
-  // The drawing state of cursor. True to draw.
+  // The local bounds and visibility of the textfield's primary text cursor.
+  gfx::Rect cursor_bounds_;
   bool is_cursor_visible_;
 
+  // The local bounds and visibility of the textfield's drop text cursor.
+  // The drop cursor is a visual cue for where dragged text will be dropped.
+  gfx::Rect drop_cursor_bounds_;
+  bool is_drop_cursor_visible_;
+
   // True if InputMethod::CancelComposition() should not be called.
   bool skip_input_method_cancel_composition_;