Revert of Use the pinch viewport offset for tap disambiguation.

public/web/WebViewClient.h

Index: public/web/WebViewClient.h
diff --git a/public/web/WebViewClient.h b/public/web/WebViewClient.h
index ae5df492997c083c298d84e5420ec1d9a4b9cddd..bc0bb7edf1af646efd89055f61af4171e0399921 100644
--- a/public/web/WebViewClient.h
+++ b/public/web/WebViewClient.h
@@ -204,14 +204,8 @@
     // unless the view did not need a layout.
     virtual void didUpdateLayout() { }
 
-    // FIXME: This is a deprecated method. Remove it after the chromium change
-    // that uses the second didTapMultipleTargets() propagates.
-    //
     // Return true to swallow the input event if the embedder will start a disambiguation popup
     virtual bool didTapMultipleTargets(const WebGestureEvent&, const WebVector<WebRect>& targetRects) { return false; }
-
-    // Return true to swallow the input event if the embedder will start a disambiguation popup
-    virtual bool didTapMultipleTargets(const WebSize& pinchViewportOffset, const WebRect& touchRect, const WebVector<WebRect>& targetRects) { return false; }
 
     // Returns comma separated list of accept languages.
     virtual WebString acceptLanguages() { return WebString(); }