Implement ThreadedInputConnection.deleteSurroundingTextInCodePoints()

third_party/WebKit/public/web/WebLocalFrame.h

Index: third_party/WebKit/public/web/WebLocalFrame.h
diff --git a/third_party/WebKit/public/web/WebLocalFrame.h b/third_party/WebKit/public/web/WebLocalFrame.h
index 31919e7d86acd39f19a9f51d9be18175eac62761..390def30b55a5ac48ac6fe9ee70dbbdf5af6a013 100644
--- a/third_party/WebKit/public/web/WebLocalFrame.h
+++ b/third_party/WebKit/public/web/WebLocalFrame.h
@@ -323,8 +323,14 @@ class WebLocalFrame : public WebFrame {
   // Replaces the selection with the input string.
   virtual void replaceSelection(const WebString&) = 0;
   // 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

[yosin_UTC9, 2017/02/09 07:19:28]

s/Java chars/UTF-16 Code Unit/
Blink doesn't know what Java is. :-)

[yabinh, 2017/02/09 10:37:04]

Done.

+  // glyphs.
   virtual void deleteSurroundingText(int before, int after) = 0;
+  // A variant of deleteSurroundingText(int, int). Major differences are:
+  // 1. The lengths are supplied in code points, not in Java chars or in glyphs.

[yosin_UTC9, 2017/02/09 07:19:28]

s/Java chars/UTF-16 Code Unit/
Blink doesn't know what Java is. :-)

[yabinh, 2017/02/09 10:37:04]

Done.

+  // 2. This method does nothing if there are one or more invalid surrogate
+  // pairs in the requested range.
+  virtual void deleteSurroundingTextInCodePoints(int before, int after) = 0;
 
   virtual void extractSmartClipData(WebRect rectInViewport,
                                     WebString& clipText,