Add popup layout tests with device scale factor

components/test_runner/web_test_delegate.h

 // Copyright 2013 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 COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 #define COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 12 matching lines @@
 class WebDeviceOrientationData;
 class WebFrame;
 class WebGamepad;
 class WebGamepads;
 class WebHistoryItem;
 class WebLayer;
 class WebLocalFrame;
 class WebMediaStream;
 class WebPlugin;
 struct WebPluginParams;
+struct WebPoint;
 struct WebRect;
 struct WebSize;
 struct WebURLError;
 class WebURLResponse;
 class WebView;
 }
 
 namespace cc {
 class TextureLayer;
 class TextureLayerClient;
@@ skipping 233 matching lines @@
   // 'accepted', otherwise it will be 'dismissed'.
   virtual void ResolveBeforeInstallPromptPromise(
       int request_id,
       const std::string& platform) = 0;
 
   virtual blink::WebPlugin* CreatePluginPlaceholder(
     blink::WebLocalFrame* frame,
     const blink::WebPluginParams& params) = 0;
 
   virtual void OnWebTestProxyBaseDestroy(WebTestProxyBase* proxy) = 0;
+
+  // Convert the position in DIP to native coordinates.
+  virtual blink::WebPoint ConvertDIPToNative(
+      const blink::WebPoint& point_in_dip) const = 0;
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_