[Android] Move weak ref for PopupWindowTouchHandleDrawable to native

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index 5997c99d8c450554208775d2cf5f97bdd64dfcf3..7ddc9abd30066b2fc7024dd26028bc64909681c1 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -621,19 +621,6 @@ void ContentViewCoreImpl::OnSelectionEvent(ui::SelectionEventType event,
       selection_rect_pix.right(), selection_rect_pix.bottom());
 }
 
-scoped_ptr<ui::TouchHandleDrawable>
-ContentViewCoreImpl::CreatePopupTouchHandleDrawable() {
-  JNIEnv* env = AttachCurrentThread();
-  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
-  if (obj.is_null()) {
-    NOTREACHED();
-    return scoped_ptr<ui::TouchHandleDrawable>();
-  }
-  return scoped_ptr<ui::TouchHandleDrawable>(new PopupTouchHandleDrawable(
-      Java_ContentViewCore_createPopupTouchHandleDrawable(env, obj.obj()),
-      dpi_scale_));
-}
-
 void ContentViewCoreImpl::ShowPastePopup(int x_dip, int y_dip) {
   RenderWidgetHostViewAndroid* view = GetRenderWidgetHostViewAndroid();
   if (!view)