Plumbs through screen size and scale factor to html_viewer

components/native_viewport/native_viewport_impl.h

 // 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.
 
 #ifndef COMPONENTS_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_
 #define COMPONENTS_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_
 
 #include <set>
 
 #include "base/macros.h"
@@ skipping 35 matching lines @@
   void Hide() override;
   void Close() override;
   void SetSize(mojo::SizePtr size) override;
   void GetContextProvider(
       mojo::InterfaceRequest<mojo::ContextProvider> request) override;
   void SetEventDispatcher(
       mojo::NativeViewportEventDispatcherPtr dispatcher) override;
 
   // PlatformViewport::Delegate implementation.
   void OnMetricsChanged(mojo::ViewportMetricsPtr metrics) override;
-  void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override;
+  void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget,
+                                    float device_pixel_ratio) override;
   void OnAcceleratedWidgetDestroyed() override;
   bool OnEvent(mojo::EventPtr event) override;
   void OnDestroyed() override;
 
   // mojo::ErrorHandler implementation.
   void OnConnectionError() override;
 
  private:
   // Callback when the dispatcher has processed a message we're waiting on
   // an ack from. |pointer_id| identifies the pointer the message was associated
@@ skipping 14 matching lines @@
   std::set<int32> pointers_waiting_on_ack_;
 
   base::WeakPtrFactory<NativeViewportImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeViewportImpl);
 };
 
 }  // namespace native_viewport
 
 #endif  // COMPONENTS_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_