Implement ThreadedInputConnection.deleteSurroundingTextInCodePoints()

third_party/WebKit/public/web/WebPlugin.h

Index: third_party/WebKit/public/web/WebPlugin.h
diff --git a/third_party/WebKit/public/web/WebPlugin.h b/third_party/WebKit/public/web/WebPlugin.h
index f9a488669051858c6e5a0c5aeffc0a9a98961de7..9cbce9e52394900a3dab67ea7fa64b0c3593c065 100644
--- a/third_party/WebKit/public/web/WebPlugin.h
+++ b/third_party/WebKit/public/web/WebPlugin.h
@@ -193,8 +193,14 @@ class WebPlugin {
   // before and after the selection or caret.
   virtual void extendSelectionAndDelete(int before, int after) {}
   // Deletes text before and after the current cursor position, excluding the
-  // selection.
+  // selection. The lengths are supplied in Java chars, not in code points or in
+  // glyphs.
   virtual void deleteSurroundingText(int before, int after) {}
+  // Deletes text before and after the current cursor position, excluding the
+  // selection. The lengths are supplied in code points, not in Java chars or in
+  // glyphs. Do nothing if there are one or more invalid surrogate pairs in the
+  // requested range.
+  virtual void deleteSurroundingTextInCodePoints(int before, int after) {}
   // If the given position is over a link, returns the absolute url.
   // Otherwise an empty url is returned.
   virtual WebURL linkAtPosition(const WebPoint& position) const {