Copying text closes the keyboard and the text input gets unfocused, forcing virtual keyboard is get…

Source/web/WebRemoteFrameImpl.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "web/WebRemoteFrameImpl.h"
 
 #include "core/frame/RemoteFrame.h"
 #include "public/platform/WebFloatRect.h"
 #include "public/platform/WebRect.h"
@@ skipping 364 matching lines @@
 {
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 void WebRemoteFrameImpl::replaceSelection(const WebString&)
 {
     ASSERT_NOT_REACHED();
 }
 
+bool WebRemoteFrameImpl::setCaretSelectionFromRangeSelection()
+{
+    ASSERT_NOT_REACHED();
+    return false;
+}
+
 void WebRemoteFrameImpl::insertText(const WebString&)
 {
     ASSERT_NOT_REACHED();
 }
 
 void WebRemoteFrameImpl::setMarkedText(const WebString&, unsigned location, unsigned length)
 {
     ASSERT_NOT_REACHED();
 }
 
@@ skipping 322 matching lines @@
 }
 
 WebString WebRemoteFrameImpl::layerTreeAsText(bool showDebugInfo) const
 {
     ASSERT_NOT_REACHED();
     return WebString();
 }
 
 } // namespace blink