Call WebView.performLongClick instead of performLongClick()

 Bug: 6656538
 Due to the WebView/WebViewClassic refactor we need to call
 WebView.performLongClick instead of performLongClick directly
 to allow subclasses to override performLongClick

Change-Id: I9b580217fbafc82d03e63eabfdda9f5bad98db0f
diff --git a/core/java/android/webkit/WebViewClassic.java b/core/java/android/webkit/WebViewClassic.java
index 611742b..da61e74 100644
--- a/core/java/android/webkit/WebViewClassic.java
+++ b/core/java/android/webkit/WebViewClassic.java
@@ -1316,7 +1316,7 @@
         case WebViewInputDispatcher.EVENT_TYPE_LONG_PRESS:
             HitTestResult hitTest = getHitTestResult();
             if (hitTest != null) {
-                performLongClick();
+                mWebView.performLongClick();
             }
             break;
         case WebViewInputDispatcher.EVENT_TYPE_DOUBLE_TAP:
@@ -7265,7 +7265,7 @@
                     // the states
                     mGotCenterDown = false;
                     mTrackballDown = false;
-                    performLongClick();
+                    mWebView.performLongClick();
                     break;
 
                 case WEBCORE_NEED_TOUCH_EVENTS: