Reland: Fix setComposingText with empty text when newCursorPosition != 1

third_party/WebKit/Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 605 matching lines @@
 
     void cancelPagePopup();
     void updatePageOverlays();
 
     float deviceScaleFactor() const;
 
     void setRootGraphicsLayer(GraphicsLayer*);
     void attachCompositorAnimationTimeline(CompositorAnimationTimeline*);
     void detachCompositorAnimationTimeline(CompositorAnimationTimeline*);
 
+    // When selection exceeds the boundary, it should stay at the boundary.
+    std::pair<int, int> adjustSelectionForBoundary(int selectionStart, int selectionEnd, const int textLength);
+
     WebViewClient* m_client; // Can be 0 (e.g. unittests, shared workers, etc.)
     WebSpellCheckClient* m_spellCheckClient;
 
     Persistent<ChromeClientImpl> m_chromeClientImpl;
     ContextMenuClientImpl m_contextMenuClientImpl;
     EditorClientImpl m_editorClientImpl;
     SpellCheckerClientImpl m_spellCheckerClientImpl;
     StorageClientImpl m_storageClientImpl;
 
     WebSize m_size;
@@ skipping 135 matching lines @@
     bool m_overrideCompositorVisibility;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif