Sky should use an SkPicture when drawing

sky/compositor/display_delegate_ganesh.h

Index: sky/compositor/display_delegate_ganesh.h
diff --git a/sky/compositor/display_delegate_ganesh.h b/sky/compositor/display_delegate_ganesh.h
deleted file mode 100644
index 1b2deb58e51e149edab4f47619be8bf990934622..0000000000000000000000000000000000000000
--- a/sky/compositor/display_delegate_ganesh.h
+++ /dev/null
@@ -1,31 +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 SKY_COMPOSITOR_DISPLAY_DELEGATE_GANESH_H_
-#define SKY_COMPOSITOR_DISPLAY_DELEGATE_GANESH_H_
-
-#include "sky/compositor/display_delegate.h"
-
-namespace sky {
-
-class LayerClient;
-
-class DisplayDelegateGanesh final : public DisplayDelegate {
- public:
-  explicit DisplayDelegateGanesh(LayerClient* client) : client_(client) {}
-  ~DisplayDelegateGanesh() override {}
-
-  static DisplayDelegate* create(LayerClient* client);
-
-  void GetPixelsForTesting(std::vector<unsigned char>* pixels) override;
-  void Paint(mojo::GaneshSurface& surface, const gfx::Rect& size) override;
-
- private:
-  LayerClient* client_;
-  DISALLOW_COPY_AND_ASSIGN(DisplayDelegateGanesh);
-};
-
-}  // namespace sky
-
-#endif  // SKY_COMPOSITOR_DISPLAY_DELEGATE_GANESH_H_