aura: Remove CreateOffscreenContext from ui::ContextFactory.

cc/test/fake_context_provider.h

-// Copyright 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 CC_TEST_FAKE_CONTEXT_PROVIDER_H_
-#define CC_TEST_FAKE_CONTEXT_PROVIDER_H_
-
-#include "base/callback.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/thread_checker.h"
-#include "cc/output/context_provider.h"
-
-namespace cc {
-class TestWebGraphicsContext3D;
-
-class FakeContextProvider : public cc::ContextProvider {
- public:
-  typedef base::Callback<scoped_ptr<TestWebGraphicsContext3D>(void)>
-    CreateCallback;
-
-  static scoped_refptr<FakeContextProvider> Create() {
-    return Create(CreateCallback());
-  }
-
-  static scoped_refptr<FakeContextProvider> Create(
-      const CreateCallback& create_callback) {
-    scoped_refptr<FakeContextProvider> provider = new FakeContextProvider;
-    if (!provider->InitializeOnMainThread(create_callback))
-      return NULL;
-    return provider;
-  }
-
-  virtual bool BindToCurrentThread() OVERRIDE;
-  virtual WebKit::WebGraphicsContext3D* Context3d() OVERRIDE;
-  virtual class GrContext* GrContext() OVERRIDE;
-  virtual void VerifyContexts() OVERRIDE;
-  virtual bool DestroyedOnMainThread() OVERRIDE;
-  virtual void SetLostContextCallback(const LostContextCallback& cb) OVERRIDE;
-
- protected:
-  FakeContextProvider();
-  virtual ~FakeContextProvider();
-
-  bool InitializeOnMainThread(const CreateCallback& create_callback);
-
-  scoped_ptr<WebKit::WebGraphicsContext3D> context3d_;
-  bool bound_;
-
-  base::ThreadChecker main_thread_checker_;
-  base::ThreadChecker context_thread_checker_;
-
-  base::Lock destroyed_lock_;
-  bool destroyed_;
-};
-
-}  // namespace cc
-
-#endif  // CC_TEST_FAKE_CONTEXT_PROVIDER_H_
-