[InputEvent] Support |sequence<Range> getRanges()| in 'beforeinput'

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

Index: third_party/WebKit/Source/core/editing/Editor.h
diff --git a/third_party/WebKit/Source/core/editing/Editor.h b/third_party/WebKit/Source/core/editing/Editor.h
index cf0ff43f65c7f7f0ad80bfb5f5fe5324f731af06..d9786692819dec713af664a5ca7ff0cc96916142 100644
--- a/third_party/WebKit/Source/core/editing/Editor.h
+++ b/third_party/WebKit/Source/core/editing/Editor.h
@@ -146,6 +146,10 @@ public:
             return *m_frame;
         }
 
+        // Returns target ranges for the command, currently only supports delete related commands.
+        // Used by InputEvent.
+        RangeVector* getRanges() const;
+
         const EditorInternalCommand* m_command;
         EditorCommandSource m_source;
         Member<LocalFrame> m_frame;