Adding support for Smart GO NEXT feature in Android Chrome

Source/web/WebViewImpl.h

Index: Source/web/WebViewImpl.h
diff --git a/Source/web/WebViewImpl.h b/Source/web/WebViewImpl.h
index c6454abeee25bdc310c1260f368e5d170d557ebe..5ef6928a43b857a3c3ea5d0044f3fa58fa41103a 100644
--- a/Source/web/WebViewImpl.h
+++ b/Source/web/WebViewImpl.h
@@ -185,6 +185,7 @@ public:
     virtual void setInitialFocus(bool reverse) override;
     virtual void clearFocusedElement() override;
     virtual void scrollFocusedNodeIntoRect(const WebRect&) override;
+    virtual void advanceFocusToNextInputField(bool direction) override;
     virtual void zoomToFindInPageRect(const WebRect&) override;
     virtual void advanceFocus(bool reverse) override;
     virtual double zoomLevel() override;
@@ -546,6 +547,9 @@ private:
 
     WebTextInputType textInputType();
     int textInputFlags();
+    Element* haveNextInput(Element*);
+    Element* havePreviousInput(Element*);
+    bool wantEnterEvents(Element*);
 
     WebString inputModeOfFocusedElement();