Expose Blimp dependencies to the embedder

blimp/client/feature/compositor/blimp_context_provider.h

-// Copyright 2015 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 BLIMP_CLIENT_FEATURE_COMPOSITOR_BLIMP_CONTEXT_PROVIDER_H_
-#define BLIMP_CLIENT_FEATURE_COMPOSITOR_BLIMP_CONTEXT_PROVIDER_H_
-
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/macros.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/thread_checker.h"
-#include "cc/output/context_provider.h"
-#include "gpu/command_buffer/client/gl_in_process_context.h"
-#include "ui/gl/gl_surface.h"
-
-namespace skia_bindings {
-class GrContextForGLES2Interface;
-}  // namespace skia_bindings
-
-namespace blimp {
-namespace client {
-
-// Helper class to provide a graphics context for the compositor.
-class BlimpContextProvider : public cc::ContextProvider {
- public:
-  static scoped_refptr<BlimpContextProvider> Create(
-      gfx::AcceleratedWidget widget,
-      gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager);
-
-  // cc::ContextProvider implementation.
-  bool BindToCurrentThread() override;
-  void DetachFromThread() override;
-  gpu::Capabilities ContextCapabilities() override;
-  gpu::gles2::GLES2Interface* ContextGL() override;
-  gpu::ContextSupport* ContextSupport() override;
-  class GrContext* GrContext() override;
-  void InvalidateGrContext(uint32_t state) override;
-  base::Lock* GetLock() override;
-  void DeleteCachedResources() override;
-  void SetLostContextCallback(
-      const LostContextCallback& lost_context_callback) override;
-
-  // Gives the GL internal format that should be used for calling CopyTexImage2D
-  // on the default framebuffer.
-  uint32_t GetCopyTextureInternalFormat();
-
- protected:
-  BlimpContextProvider(gfx::AcceleratedWidget widget,
-                       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager);
-  ~BlimpContextProvider() override;
-
- private:
-  void OnLostContext();
-
-  base::ThreadChecker main_thread_checker_;
-  base::ThreadChecker context_thread_checker_;
-
-  std::unique_ptr<gpu::GLInProcessContext> context_;
-  std::unique_ptr<skia_bindings::GrContextForGLES2Interface> gr_context_;
-
-  LostContextCallback lost_context_callback_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpContextProvider);
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  // BLIMP_CLIENT_FEATURE_COMPOSITOR_BLIMP_CONTEXT_PROVIDER_H_