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

Source/web/WebLocalFrameImpl.cpp

Index: Source/web/WebLocalFrameImpl.cpp
diff --git a/Source/web/WebLocalFrameImpl.cpp b/Source/web/WebLocalFrameImpl.cpp
index 55a2de14e016a97b880825cff2767081799e7554..9b3acf29c786c69bbac1c56b5918f1d13b74af96 100644
--- a/Source/web/WebLocalFrameImpl.cpp
+++ b/Source/web/WebLocalFrameImpl.cpp
@@ -1836,6 +1836,22 @@ void WebLocalFrameImpl::setFindEndstateFocusAndSelection()
     }
 }
 
+bool WebLocalFrameImpl::setCaretSelectionFromRangeSelection()
+{
+    if (!frame()->selection().rootEditableElement() || !frame()->selection().isRange())
+        return false;
+
+    // Collapse the selection to end of Range Selection.
+    WebRange currentSelectionRange = selectionRange();
+    if (RefPtrWillBeRawPtr<Range> range = static_cast<PassRefPtrWillBeRawPtr<Range> >(currentSelectionRange)) {
+        range->collapse(false);
+        selectRange(currentSelectionRange);
+        return true;
+    }
+
+    return false;
+}
+
 void WebLocalFrameImpl::didFail(const ResourceError& error, bool wasProvisional)
 {
     if (!client())