Break Sky's dependency on cc

sky/viewer/platform/weblayertreeview_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 SKY_VIEWER_PLATFORM_WEBLAYERTREEVIEW_IMPL_H_
-#define SKY_VIEWER_PLATFORM_WEBLAYERTREEVIEW_IMPL_H_
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/single_thread_task_runner.h"
-#include "cc/layers/content_layer.h"
-#include "cc/layers/content_layer_client.h"
-#include "cc/trees/layer_tree_host_client.h"
-#include "mojo/cc/output_surface_mojo.h"
-#include "mojo/services/public/interfaces/gpu/gpu.mojom.h"
-#include "mojo/services/public/interfaces/surfaces/surfaces_service.mojom.h"
-#include "sky/engine/public/platform/WebLayerTreeView.h"
-
-namespace base {
-class MessageLoopProxy;
-}
-
-namespace blink {
-class WebWidget;
-}
-
-namespace cc {
-class LayerTreeHost;
-}
-
-namespace mojo {
-class View;
-}
-
-namespace sky {
-
-class WebLayerTreeViewImpl : public blink::WebLayerTreeView,
-                             public cc::LayerTreeHostClient,
-                             public cc::ContentLayerClient,
-                             public mojo::OutputSurfaceMojoClient {
- public:
-  WebLayerTreeViewImpl(
-      scoped_refptr<base::MessageLoopProxy> compositor_message_loop_proxy,
-      mojo::SurfacesServicePtr surfaces_service,
-      mojo::GpuPtr gpu_service);
-  virtual ~WebLayerTreeViewImpl();
-
-  void set_widget(blink::WebWidget* widget);
-  void set_view(mojo::View* view) { view_ = view; }
-
-  // cc::LayerTreeHostClient implementation.
-  virtual void WillBeginMainFrame(int frame_id) override;
-  virtual void DidBeginMainFrame() override;
-  virtual void BeginMainFrame(const cc::BeginFrameArgs& args) override;
-  virtual void Layout() override;
-  virtual void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
-                                   float page_scale,
-                                   float top_controls_delta) override;
-  virtual void ApplyViewportDeltas(const gfx::Vector2d& inner_delta,
-                                   const gfx::Vector2d& outer_delta,
-                                   float page_scale,
-                                   float top_controls_delta) override;
-  virtual void RequestNewOutputSurface(bool fallback) override;
-  virtual void DidInitializeOutputSurface() override;
-  virtual void WillCommit() override;
-  virtual void DidCommit() override;
-  virtual void DidCommitAndDrawFrame() override;
-  virtual void DidCompleteSwapBuffers() override;
-  virtual void RateLimitSharedMainThreadContext() override {}
-
-  // cc::ContentLayerClient
-  void PaintContents(SkCanvas* canvas,
-                     const gfx::Rect& clip,
-                     GraphicsContextStatus gc_status) override;
-  bool FillsBoundsCompletely() const override;
-
-  // blink::WebLayerTreeView implementation.
-  virtual void setSurfaceReady() override;
-  virtual void setRootLayer(const blink::WebLayer& layer) override;
-  virtual void clearRootLayer() override;
-  virtual void setViewportSize(
-      const blink::WebSize& device_viewport_size) override;
-  virtual blink::WebSize deviceViewportSize() const override;
-  virtual void setDeviceScaleFactor(float) override;
-  virtual float deviceScaleFactor() const override;
-  virtual void setBackgroundColor(blink::WebColor color) override;
-  virtual void setHasTransparentBackground(
-      bool has_transparent_background) override;
-  virtual void setOverhangBitmap(const SkBitmap& bitmap) override;
-  virtual void setVisible(bool visible) override;
-  virtual void heuristicsForGpuRasterizationUpdated(bool matches_heuristic) {}
-  virtual void setTopControlsContentOffset(float offset) {}
-  virtual void setNeedsAnimate() override;
-  virtual bool commitRequested() const override;
-  virtual void didStopFlinging() {}
-  virtual void compositeAndReadbackAsync(
-      blink::WebCompositeAndReadbackAsyncCallback* callback) {}
-  virtual void finishAllRendering() override;
-  virtual void setDeferCommits(bool defer_commits) {}
-  virtual void registerForAnimations(blink::WebLayer* layer) override;
-  virtual void registerViewportLayers(
-      const blink::WebLayer* page_scale_layer,
-      const blink::WebLayer* inner_viewport_scroll_layer,
-      const blink::WebLayer* outer_viewport_scroll_layer) override;
-  virtual void clearViewportLayers() override;
-  virtual void registerSelection(const blink::WebSelectionBound& start,
-                                 const blink::WebSelectionBound& end) {}
-  virtual void clearSelection() {}
-  virtual void setShowFPSCounter(bool) {}
-  virtual void setShowPaintRects(bool) {}
-  virtual void setShowDebugBorders(bool) {}
-  virtual void setContinuousPaintingEnabled(bool) {}
-  virtual void setShowScrollBottleneckRects(bool) {}
-
-  // OutputSurfaceMojoClient implementation.
-  virtual void DidCreateSurface(cc::SurfaceId id) override;
-
- private:
-  void OnSurfaceConnectionCreated(mojo::SurfacePtr surface, uint32_t id_namespace);
-  void DidCreateSurfaceOnMainThread(cc::SurfaceId id);
-
-  // widget_ and view_ will outlive us.
-  blink::WebWidget* widget_;
-  mojo::View* view_;
-  scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
-  mojo::SurfacesServicePtr surfaces_service_;
-  scoped_ptr<cc::OutputSurface> output_surface_;
-  mojo::GpuPtr gpu_service_;
-  scoped_refptr<base::SingleThreadTaskRunner>
-      main_thread_compositor_task_runner_;
-  base::WeakPtr<WebLayerTreeViewImpl> main_thread_bound_weak_ptr_;
-
-  scoped_refptr<cc::ContentLayer> root_layer_;
-
-  base::WeakPtrFactory<WebLayerTreeViewImpl> weak_factory_;
-  DISALLOW_COPY_AND_ASSIGN(WebLayerTreeViewImpl);
-};
-
-}  // namespace sky
-
-#endif  // SKY_VIEWER_PLATFORM_WEBLAYERTREEVIEW_IMPL_H_