Mac: Kill lots of AcceleratedWidget code (with fire)

ui/accelerated_widget_mac/software_layer.h

Index: ui/accelerated_widget_mac/software_layer.h
diff --git a/ui/accelerated_widget_mac/software_layer.h b/ui/accelerated_widget_mac/software_layer.h
deleted file mode 100644
index 314314e99dbfb3804ec46101c632a1a2ea299251..0000000000000000000000000000000000000000
--- a/ui/accelerated_widget_mac/software_layer.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// 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 UI_ACCELERATED_WIDGET_MAC_SOFTWARE_LAYER_H_
-#define UI_ACCELERATED_WIDGET_MAC_SOFTWARE_LAYER_H_
-
-#import <Cocoa/Cocoa.h>
-
-#include "ui/gfx/geometry/size.h"
-
-@interface SoftwareLayer : CALayer
-- (id)init;
-
-- (void)setContentsToData:(const void *)data
-             withRowBytes:(size_t)rowBytes
-            withPixelSize:(gfx::Size)pixelSize
-          withScaleFactor:(float)scaleFactor;
-@end
-
-
-#endif  // UI_ACCELERATED_WIDGET_MAC_SOFTWARE_LAYER_H_