Revert of Refactor content/common/gpu into gpu/ipc/service

content/common/gpu/gpu_channel_manager_delegate.h

+// Copyright 2016 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_COMMON_GPU_GPU_CHANNEL_MANAGER_DELEGATE_H_
+#define CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_DELEGATE_H_
+
+#include "gpu/command_buffer/common/constants.h"
+#include "gpu/ipc/common/surface_handle.h"
+
+#if defined(OS_MACOSX)
+#include "ui/base/cocoa/remote_layer_api.h"
+#include "ui/events/latency_info.h"
+#include "ui/gfx/mac/io_surface.h"
+#endif
+
+class GURL;
+
+namespace IPC {
+struct ChannelHandle;
+}
+
+namespace gpu {
+struct GPUMemoryUmaStats;
+}
+
+namespace content {
+
+class GpuChannelManagerDelegate {
+ public:
+  // Tells the delegate that a context has subscribed to a new target and
+  // the browser should start sending the corresponding information
+  virtual void AddSubscription(int32_t client_id, unsigned int target) = 0;
+
+  // Tells the delegate that an offscreen context was created for the provided
+  // |active_url|.
+  virtual void DidCreateOffscreenContext(const GURL& active_url) = 0;
+
+  // Notification from GPU that the channel is destroyed.
+  virtual void DidDestroyChannel(int client_id) = 0;
+
+  // Tells the delegate that an offscreen context was destroyed for the provided
+  // |active_url|.
+  virtual void DidDestroyOffscreenContext(const GURL& active_url) = 0;
+
+  // Tells the delegate that a context was lost.
+  virtual void DidLoseContext(bool offscreen,
+                              gpu::error::ContextLostReason reason,
+                              const GURL& active_url) = 0;
+
+  // Tells the delegate about GPU memory usage statistics for UMA logging.
+  virtual void GpuMemoryUmaStats(const gpu::GPUMemoryUmaStats& params) = 0;
+
+  // Tells the delegate that no contexts are subscribed to the target anymore
+  // so the delegate should stop sending the corresponding information.
+  virtual void RemoveSubscription(int32_t client_id, unsigned int target) = 0;
+
+  // Tells the delegate to cache the given shader information in persistent
+  // storage. The embedder is expected to repopulate the in-memory cache through
+  // the respective GpuChannelManager API.
+  virtual void StoreShaderToDisk(int32_t client_id,
+                                 const std::string& key,
+                                 const std::string& shader) = 0;
+
+#if defined(OS_MACOSX)
+  // Tells the delegate that an accelerated surface has swapped.
+  virtual void SendAcceleratedSurfaceBuffersSwapped(
+      int32_t surface_id,
+      CAContextID ca_context_id,
+      const gfx::ScopedRefCountedIOSurfaceMachPort& io_surface,
+      const gfx::Size& size,
+      float scale_factor,
+      std::vector<ui::LatencyInfo> latency_info) = 0;
+#endif
+
+#if defined(OS_WIN)
+  virtual void SendAcceleratedSurfaceCreatedChildWindow(
+      gpu::SurfaceHandle parent_window,
+      gpu::SurfaceHandle child_window) = 0;
+#endif
+
+  // Sets the currently active URL.  Use GURL() to clear the URL.
+  virtual void SetActiveURL(const GURL& url) = 0;
+
+ protected:
+  virtual ~GpuChannelManagerDelegate() {}
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_DELEGATE_H_