Make SelectionPopupController.ShowPastePopup only be triggered by Blink

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 0404809aee851394babc0f21a464ff167e212e2f..7332e41f0fd06685fc63023f7bfadc0562555aed 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -1787,6 +1787,12 @@ void RenderWidgetHostViewAndroid::MoveCaret(const gfx::Point& point) {
     host_->MoveCaret(point);
 }
 
+void RenderWidgetHostViewAndroid::ShowContextMenuAtPoint(
+    const gfx::Point& point) {
+  if (host_)
+    host_->ShowContextMenuAtPoint(point);
+}
+
 void RenderWidgetHostViewAndroid::DismissTextHandles() {
   if (selection_controller_)
     selection_controller_->HideAndDisallowShowingAutomatically();