Moves common view_manager related aura files to mojo/aura

mojo/examples/aura_demo/context_factory_view_manager.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 MOJO_EXAMPLES_AURA_DEMO_CONTEXT_FACTORY_VIEW_MANAGER_H_
-#define MOJO_EXAMPLES_AURA_DEMO_CONTEXT_FACTORY_VIEW_MANAGER_H_
-
-#include "ui/compositor/compositor.h"
-
-namespace mojo {
-namespace view_manager {
-class IViewManager;
-}
-namespace examples {
-
-class ContextFactoryViewManager : public ui::ContextFactory {
- public:
-  ContextFactoryViewManager(view_manager::IViewManager* view_manager,
-                            uint32_t view_id);
-  virtual ~ContextFactoryViewManager();
-
- private:
-  // ContextFactory:
-  virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(
-      ui::Compositor* compositor,
-      bool software_fallback) OVERRIDE;
-  virtual scoped_refptr<ui::Reflector> CreateReflector(
-      ui::Compositor* mirrored_compositor,
-      ui::Layer* mirroring_layer) OVERRIDE;
-  virtual void RemoveReflector(scoped_refptr<ui::Reflector> reflector) OVERRIDE;
-  virtual scoped_refptr<cc::ContextProvider> SharedMainThreadContextProvider()
-      OVERRIDE;
-  virtual void RemoveCompositor(ui::Compositor* compositor) OVERRIDE;
-  virtual bool DoesCreateTestContexts() OVERRIDE;
-  virtual cc::SharedBitmapManager* GetSharedBitmapManager() OVERRIDE;
-  virtual base::MessageLoopProxy* GetCompositorMessageLoop() OVERRIDE;
-
-  view_manager::IViewManager* view_manager_;
-  const uint32_t view_id_;
-  scoped_ptr<cc::SharedBitmapManager> shared_bitmap_manager_;
-
-  DISALLOW_COPY_AND_ASSIGN(ContextFactoryViewManager);
-};
-
-}  // namespace examples
-}  // namespace mojo
-
-#endif  // MOJO_EXAMPLES_AURA_DEMO_CONTEXT_FACTORY_VIEW_MANAGER_H_