Prevent browser-side hit testing when page popup is selected

content/browser/renderer_host/render_widget_host_delegate.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
 
 #include "build/build_config.h"
 #include "components/rappor/public/sample.h"
 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
 #include "content/public/browser/keyboard_event_processing_result.h"
@@ skipping 79 matching lines @@
 
 RenderWidgetHostImpl* RenderWidgetHostDelegate::GetFullscreenRenderWidgetHost()
     const {
   return nullptr;
 }
 
 bool RenderWidgetHostDelegate::OnUpdateDragCursor() {
   return false;
 }
 
+bool RenderWidgetHostDelegate::IsWidgetForMainFrame(RenderWidgetHostImpl*) {
+  return false;
+}
+
 bool RenderWidgetHostDelegate::AddDomainInfoToRapporSample(
     rappor::Sample* sample) {
   sample->SetStringField("Domain", "Unknown");
   return false;
 }
 
 WebContents* RenderWidgetHostDelegate::GetAsWebContents() {
   return nullptr;
 }
 
 }  // namespace content