Make delegated software renderer work on Mac

cc/test/pixel_test_software_output_device.cc

 // 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.
 
 #include "cc/test/pixel_test_software_output_device.h"
 
 namespace cc {
 
-void PixelTestSoftwareOutputDevice::Resize(const gfx::Size& size) {
-  gfx::Size expanded_size(size.width() + surface_expansion_size_.width(),
-                          size.height() + surface_expansion_size_.height());
-  SoftwareOutputDevice::Resize(expanded_size);
+void PixelTestSoftwareOutputDevice::Resize(const gfx::Size& pixel_size,
+                                           float scale_factor) {
+  gfx::Size expanded_size(
+      pixel_size.width() + surface_expansion_size_.width(),
+      pixel_size.height() + surface_expansion_size_.height());
+  SoftwareOutputDevice::Resize(expanded_size, scale_factor);
 }
 
 }  // namespace cc