Prevent browser-side hit testing when page popup is selected

content/browser/renderer_host/render_widget_host_delegate.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 204 matching lines @@
   virtual RenderViewHostDelegateView* GetDelegateView();
 
   // Returns the current Flash fullscreen RenderWidgetHostImpl if any. This is
   // not intended for use with other types of fullscreen, such as HTML
   // fullscreen, and will return nullptr for those cases.
   virtual RenderWidgetHostImpl* GetFullscreenRenderWidgetHost() const;
 
   // Allow the delegate to handle the cursor update. Returns true if handled.
   virtual bool OnUpdateDragCursor();
 
+  virtual bool IsWidgetForMainFrame(RenderWidgetHostImpl*);

[alexmos, 2017/03/23 22:25:18]

nit: A comment here on what this is for might be useful.

[kenrb, 2017/03/24 14:18:43]

Done. I had intended to do that but forgot, thanks for catching it.

+
   // Inner WebContents Helpers -------------------------------------------------
   //
   // These functions are helpers in managing a hierharchy of WebContents
   // involved in rendering inner WebContents.
 
   // Get the RenderWidgetHost that should receive page level focus events. This
   // will be the widget that is rendering the main frame of the currently
   // focused WebContents.
   virtual RenderWidgetHostImpl* GetRenderWidgetHostWithPageFocus();
 
@@ skipping 18 matching lines @@
   // not a WebContents, returns nullptr.
   virtual WebContents* GetAsWebContents();
 
  protected:
   virtual ~RenderWidgetHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_