Add popup layout tests with device scale factor

components/test_runner/web_test_proxy.cc

 // Copyright 2014 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 "components/test_runner/web_test_proxy.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <cctype>
@@ skipping 655 matching lines @@
                               base::Unretained(this), callback));
     return;
   }
 
   CaptureCallback* capture_callback = new CaptureCallback(base::Bind(
       &WebTestProxyBase::DidCapturePixelsAsync, base::Unretained(this),
       callback));
   web_widget_->compositeAndReadbackAsync(capture_callback);
   if (blink::WebPagePopup* popup = web_widget_->pagePopup()) {
     capture_callback->set_wait_for_popup(true);
-    capture_callback->set_popup_position(popup->positionRelativeToOwner());
+    capture_callback->set_popup_position(
+        delegate_->ConvertDIPToNative(popup->positionRelativeToOwner()));
     popup->compositeAndReadbackAsync(capture_callback);
   }
 }
 
 void WebTestProxyBase::DidCapturePixelsAsync(
     const base::Callback<void(const SkBitmap&)>& callback,
     const SkBitmap& bitmap) {
   SkCanvas canvas(bitmap);
   DrawSelectionRect(&canvas);
   if (!callback.is_null())
@@ skipping 737 matching lines @@
     callback->onError(blink::WebSetSinkIdError::NotAuthorized);
   else
     callback->onError(blink::WebSetSinkIdError::NotFound);
 }
 
 blink::WebString WebTestProxyBase::acceptLanguages() {
   return blink::WebString::fromUTF8(accept_languages_);
 }
 
 }  // namespace test_runner