Revert 245131 "Add the UI compositor to the Mac build", which caused Mac ASan redness

trunk/src/content/browser/compositor/image_transport_factory.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 CONTENT_BROWSER_COMPOSITOR_IMAGE_TRANSPORT_FACTORY_H_
-#define CONTENT_BROWSER_COMPOSITOR_IMAGE_TRANSPORT_FACTORY_H_
-
-#include <string>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "content/common/content_export.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace gfx {
-class Size;
-}
-
-namespace ui {
-class ContextFactory;
-class Texture;
-}
-
-namespace blink {
-class WebGraphicsContext3D;
-}
-
-namespace content {
-class GLHelper;
-
-// This class provides a way to get notified when surface handles get lost.
-class CONTENT_EXPORT ImageTransportFactoryObserver {
- public:
-  virtual ~ImageTransportFactoryObserver() {}
-
-  // Notifies that the surface handles generated by ImageTransportFactory were
-  // lost.
-  // When this is called, the old resources (e.g. shared context, GL helper)
-  // still exist, but are about to be destroyed. Getting a reference to those
-  // resources from the ImageTransportFactory (e.g. through GetGLHelper) will
-  // return newly recreated, valid resources.
-  virtual void OnLostResources() = 0;
-};
-
-// This class provides the interface for creating the support for the
-// cross-process image transport, both for creating the shared surface handle
-// (destination surface for the GPU process) and the transport client (logic for
-// using that surface as a texture). The factory is a process-wide singleton.
-class CONTENT_EXPORT ImageTransportFactory {
- public:
-  virtual ~ImageTransportFactory() {}
-
-  // Initializes the global transport factory.
-  static void Initialize();
-
-  // Initializes the global transport factory for unit tests using the provided
-  // context factory.
-  static void InitializeForUnitTests(
-      scoped_ptr<ui::ContextFactory> test_factory);
-
-  // Terminates the global transport factory.
-  static void Terminate();
-
-  // Gets the factory instance.
-  static ImageTransportFactory* GetInstance();
-
-  // Gets the image transport factory as a context factory for the compositor.
-  virtual ui::ContextFactory* AsContextFactory() = 0;
-
-  virtual gfx::GLSurfaceHandle GetSharedSurfaceHandle() = 0;
-
-  // Creates a transport texture for a given scale factor.
-  virtual scoped_refptr<ui::Texture> CreateTransportClient(
-      float device_scale_factor) = 0;
-
-  // Variant of CreateTransportClient() that deletes the texture on the GPU when
-  // the returned value is deleted.
-  virtual scoped_refptr<ui::Texture> CreateOwnedTexture(
-      const gfx::Size& size,
-      float device_scale_factor,
-      unsigned int texture_id) = 0;
-
-  // Gets a GLHelper instance, associated with the shared context. This
-  // GLHelper will get destroyed whenever the shared context is lost
-  // (ImageTransportFactoryObserver::OnLostResources is called).
-  virtual GLHelper* GetGLHelper() = 0;
-
-  virtual void AddObserver(ImageTransportFactoryObserver* observer) = 0;
-  virtual void RemoveObserver(ImageTransportFactoryObserver* observer) = 0;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_COMPOSITOR_IMAGE_TRANSPORT_FACTORY_H_