MacViews: Move content::AcceleratedWidget to new component, ui/accelerated_widget_mac

content/browser/compositor/io_surface_context_mac.h

-// Copyright (c) 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.
-
-#ifndef CONTENT_BROWSER_COMPOSITOR_IO_SURFACE_CONTEXT_MAC_H_
-#define CONTENT_BROWSER_COMPOSITOR_IO_SURFACE_CONTEXT_MAC_H_
-
-#include <OpenGL/OpenGL.h>
-#include <map>
-
-#include "base/basictypes.h"
-#include "base/lazy_instance.h"
-#include "base/mac/scoped_nsobject.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "ui/gl/gpu_switching_observer.h"
-#include "ui/gl/scoped_cgl.h"
-
-namespace content {
-
-class IOSurfaceContext
-    : public base::RefCounted<IOSurfaceContext>,
-      public ui::GpuSwitchingObserver {
- public:
-  enum Type {
-    // The number used to look up the context used for async readback and for
-    // initializing the IOSurface.
-    kOffscreenContext = -2,
-    // The number used to look up the context used by CAOpenGLLayers.
-    kCALayerContext = -3,
-  };
-
-  // Get or create a GL context of the specified type. Share these GL contexts
-  // as much as possible because creating and destroying them can be expensive.
-  // http://crbug.com/180463
-  static scoped_refptr<IOSurfaceContext> Get(Type type);
-
-  // Mark that all the GL contexts in the same sharegroup as this context as
-  // invalid, so they shouldn't be returned anymore by Get, but rather, new
-  // contexts should be created. This is called as a precaution when unexpected
-  // GL errors occur, or after a GPU switch.
-  void PoisonContextAndSharegroup();
-  bool HasBeenPoisoned() const { return poisoned_; }
-
-  CGLContextObj cgl_context() const { return cgl_context_; }
-
-  // content::GpuDataManagerObserver implementation.
-  void OnGpuSwitched() override;
-
- private:
-  friend class base::RefCounted<IOSurfaceContext>;
-
-  IOSurfaceContext(
-      Type type,
-      base::ScopedTypeRef<CGLContextObj> clg_context_strong);
-  virtual ~IOSurfaceContext();
-
-  Type type_;
-  base::ScopedTypeRef<CGLContextObj> cgl_context_;
-
-  bool poisoned_;
-
-  // The global map from window number and window ordering to
-  // context data.
-  typedef std::map<Type, IOSurfaceContext*> TypeMap;
-  static base::LazyInstance<TypeMap> type_map_;
-  static TypeMap* type_map();
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_COMPOSITOR_IO_SURFACE_CONTEXT_MAC_H_