Propagate auto-resize viewport values to OOPIF processes

content/browser/renderer_host/render_widget_host_delegate.h

Index: content/browser/renderer_host/render_widget_host_delegate.h
diff --git a/content/browser/renderer_host/render_widget_host_delegate.h b/content/browser/renderer_host/render_widget_host_delegate.h
index ca56a9df9870e4bf1731152d5125f5295c423c70..0e137f632c95dc936194cc7405c9fe2c16d2ca9d 100644
--- a/content/browser/renderer_host/render_widget_host_delegate.h
+++ b/content/browser/renderer_host/render_widget_host_delegate.h
@@ -266,6 +266,9 @@ class CONTENT_EXPORT RenderWidgetHostDelegate {
   // Notifies that a CompositorFrame was received from the renderer.
   virtual void DidReceiveCompositorFrame() {}
 
+  // Gets the size set by a top-level frame with auto-resize enabled.
+  virtual gfx::Size GetAutoResizeSize();
+
  protected:
   virtual ~RenderWidgetHostDelegate() {}
 };