Move download messages from Renderer to Frame filter.

components/test_runner/pixel_dump.cc

Index: components/test_runner/pixel_dump.cc
diff --git a/components/test_runner/pixel_dump.cc b/components/test_runner/pixel_dump.cc
index fc859d782c521dfe0b3f6e5ad5301692ce8874ad..12f0d7a1e756703ebbad11ff6f3d95642a6a6b66 100644
--- a/components/test_runner/pixel_dump.cc
+++ b/components/test_runner/pixel_dump.cc
@@ -185,7 +185,9 @@ void CopyImageAtAndCapturePixels(
   uint64_t sequence_number =
       blink::Platform::current()->clipboard()->sequenceNumber(
           blink::WebClipboard::Buffer());
-  web_view->copyImageAt(blink::WebPoint(x, y));
+  // TODO(lukasza): Support image capture in OOPIFs for
+  // https://crbug.com/477150.
+  web_view->mainFrame()->copyImageAt(blink::WebPoint(x, y));
   if (sequence_number ==
       blink::Platform::current()->clipboard()->sequenceNumber(
           blink::WebClipboard::Buffer())) {