Adding support for Smart GO NEXT feature in Android Chrome

public/web/WebView.h

Index: public/web/WebView.h
diff --git a/public/web/WebView.h b/public/web/WebView.h
index 40462065090ca19d4128f3192a6eb13260c3ea37..daa1d9f961edfda2739181f7d267930883d274a3 100644
--- a/public/web/WebView.h
+++ b/public/web/WebView.h
@@ -33,6 +33,7 @@
 
 #include "../platform/WebColor.h"
 #include "../platform/WebDisplayMode.h"
+#include "../platform/WebFocusType.h"
 #include "../platform/WebPageVisibilityState.h"
 #include "../platform/WebString.h"
 #include "../platform/WebVector.h"
@@ -176,6 +177,12 @@ public:
     // viewport space. Returns true if an animation was started.
     virtual bool scrollFocusedNodeIntoRect(const WebRect&) { return false; }
 
+    // Advance the focus of the WebView to next text input element from current
+    // input field wrt sequential navigation with TAB or Shift + TAB
+    // WebFocusTypeForward simulates TAB and WebFocusTypeBackward simulates
+    // Shift + TAB. (Will be extended to other form Controls like Select element, Checkbox, Radio etc.)
+    virtual void advanceFocusInForm(WebFocusType focusType) { }
+
     // Advance the focus of the WebView forward to the next element or to the
     // previous element in the tab sequence (if reverse is true).
     virtual void advanceFocus(bool reverse) { }