Let WebViewImpl::textInputInfo() query the focused element when selection is empty

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 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 2147 matching lines @@
 }
 
 WebTextInputInfo WebViewImpl::textInputInfo()
 {
     WebTextInputInfo info;
 
     Frame* focused = focusedWebCoreFrame();
     if (!focused)
         return info;
 
-    FrameSelection& selection = focused->selection();
-    Node* node = selection.selection().rootEditableElement();
-    if (!node)
-        return info;
-
     info.inputMode = inputModeOfFocusedElement();
 
     info.type = textInputType();
     if (info.type == WebTextInputTypeNone)
         return info;
 
+    FrameSelection& selection = focused->selection();
+    Node* node = selection.selection().rootEditableElement();
+    if (!node)
+        return info;
+
     if (!focused->editor().canEdit())
         return info;
 
     info.value = plainText(rangeOfContents(node).get());
 
     if (info.value.isEmpty())
         return info;
 
     if (RefPtr<Range> range = selection.selection().firstRange()) {
         PlainTextRange plainTextRange(PlainTextRange::create(*node, *range.get()));
@@ skipping 2003 matching lines @@
     const PageScaleConstraints& constraints = m_pageScaleConstraintsSet.pageDefinedConstraints();
 
     if (!mainFrameImpl() || !mainFrameImpl()->frameView())
         return false;
 
     return mainFrameImpl()->frameView()->layoutSize().width() == m_size.width
         || (constraints.minimumScale == constraints.maximumScale && constraints.minimumScale != -1);
 }
 
 } // namespace blink