Move content/common/gpu/client to gpu/ipc/client

content/common/gpu/client/gpu_channel_host.h

Index: content/common/gpu/client/gpu_channel_host.h
diff --git a/content/common/gpu/client/gpu_channel_host.h b/content/common/gpu/client/gpu_channel_host.h
deleted file mode 100644
index ab879de36987d35582842dc47753f1531f75f93a..0000000000000000000000000000000000000000
--- a/content/common/gpu/client/gpu_channel_host.h
+++ /dev/null
@@ -1,299 +0,0 @@
-// Copyright (c) 2012 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_CLIENT_GPU_CHANNEL_HOST_H_
-#define CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-#include "base/atomic_sequence_num.h"
-#include "base/containers/scoped_ptr_hash_map.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/process/process.h"
-#include "base/synchronization/lock.h"
-#include "content/common/content_export.h"
-#include "gpu/config/gpu_info.h"
-#include "gpu/ipc/common/gpu_stream_constants.h"
-#include "gpu/ipc/common/surface_handle.h"
-#include "ipc/ipc_channel_handle.h"
-#include "ipc/ipc_sync_channel.h"
-#include "ipc/message_filter.h"
-#include "ipc/message_router.h"
-#include "ui/events/latency_info.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gfx/gpu_memory_buffer.h"
-#include "ui/gl/gpu_preference.h"
-
-class GURL;
-
-namespace base {
-class WaitableEvent;
-}
-
-namespace IPC {
-class SyncMessageFilter;
-}
-
-namespace gpu {
-class GpuMemoryBufferManager;
-}
-
-namespace content {
-class CommandBufferProxyImpl;
-class GpuChannelHost;
-
-class CONTENT_EXPORT GpuChannelHostFactory {
- public:
-  virtual ~GpuChannelHostFactory() {}
-
-  virtual bool IsMainThread() = 0;
-  virtual scoped_refptr<base::SingleThreadTaskRunner>
-  GetIOThreadTaskRunner() = 0;
-  virtual scoped_ptr<base::SharedMemory> AllocateSharedMemory(size_t size) = 0;
-};
-
-// Encapsulates an IPC channel between the client and one GPU process.
-// On the GPU process side there's a corresponding GpuChannel.
-// Every method can be called on any thread with a message loop, except for the
-// IO thread.
-class GpuChannelHost : public IPC::Sender,
-                       public base::RefCountedThreadSafe<GpuChannelHost> {
- public:
-  // Must be called on the main thread (as defined by the factory).
-  static scoped_refptr<GpuChannelHost> Create(
-      GpuChannelHostFactory* factory,
-      int channel_id,
-      const gpu::GPUInfo& gpu_info,
-      const IPC::ChannelHandle& channel_handle,
-      base::WaitableEvent* shutdown_event,
-      gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager);
-
-  static const int32_t kDefaultStreamId = gpu::GPU_STREAM_DEFAULT;
-  static const gpu::GpuStreamPriority kDefaultStreamPriority =
-      gpu::GpuStreamPriority::NORMAL;
-
-  bool IsLost() const {
-    DCHECK(channel_filter_.get());
-    return channel_filter_->IsLost();
-  }
-
-  int channel_id() const { return channel_id_; }
-
-  // The GPU stats reported by the GPU process.
-  const gpu::GPUInfo& gpu_info() const { return gpu_info_; }
-
-  // IPC::Sender implementation:
-  bool Send(IPC::Message* msg) override;
-
-  // Set an ordering barrier.  AsyncFlushes any pending barriers on other
-  // routes. Combines multiple OrderingBarriers into a single AsyncFlush.
-  // Returns the flush ID for the stream or 0 if put offset was not changed.
-  uint32_t OrderingBarrier(int32_t route_id,
-                           int32_t stream_id,
-                           int32_t put_offset,
-                           uint32_t flush_count,
-                           const std::vector<ui::LatencyInfo>& latency_info,
-                           bool put_offset_changed,
-                           bool do_flush);
-
-  void FlushPendingStream(int32_t stream_id);
-
-  // Create and connect to a command buffer in the GPU process.
-  scoped_ptr<CommandBufferProxyImpl> CreateCommandBuffer(
-      gpu::SurfaceHandle surface_handle,
-      const gfx::Size& size,
-      CommandBufferProxyImpl* share_group,
-      int32_t stream_id,
-      gpu::GpuStreamPriority stream_priority,
-      const std::vector<int32_t>& attribs,
-      const GURL& active_url,
-      gfx::GpuPreference gpu_preference);
-
-  // Destroy a command buffer created by this channel.
-  void DestroyCommandBuffer(CommandBufferProxyImpl* command_buffer);
-
-  // Destroy this channel. Must be called on the main thread, before
-  // destruction.
-  void DestroyChannel();
-
-  // Add a message route for the current message loop.
-  void AddRoute(int route_id, base::WeakPtr<IPC::Listener> listener);
-
-  // Add a message route to be handled on the provided |task_runner|.
-  void AddRouteWithTaskRunner(
-      int route_id,
-      base::WeakPtr<IPC::Listener> listener,
-      scoped_refptr<base::SingleThreadTaskRunner> task_runner);
-
-  // Remove the message route associated with |route_id|.
-  void RemoveRoute(int route_id);
-
-  GpuChannelHostFactory* factory() const { return factory_; }
-
-  gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager() const {
-    return gpu_memory_buffer_manager_;
-  }
-
-  // Returns a handle to the shared memory that can be sent via IPC to the
-  // GPU process. The caller is responsible for ensuring it is closed. Returns
-  // an invalid handle on failure.
-  base::SharedMemoryHandle ShareToGpuProcess(
-      base::SharedMemoryHandle source_handle);
-
-  // Reserve one unused transfer buffer ID.
-  int32_t ReserveTransferBufferId();
-
-  // Returns a GPU memory buffer handle to the buffer that can be sent via
-  // IPC to the GPU process. The caller is responsible for ensuring it is
-  // closed. Returns an invalid handle on failure.
-  gfx::GpuMemoryBufferHandle ShareGpuMemoryBufferToGpuProcess(
-      const gfx::GpuMemoryBufferHandle& source_handle,
-      bool* requires_sync_point);
-
-  // Reserve one unused image ID.
-  int32_t ReserveImageId();
-
-  // Generate a route ID guaranteed to be unique for this channel.
-  int32_t GenerateRouteID();
-
-  // Generate a stream ID guaranteed to be unique for this channel.
-  int32_t GenerateStreamID();
-
-  // Sends a synchronous nop to the server which validate that all previous IPC
-  // messages have been received. Once the synchronous nop has been sent to the
-  // server all previous flushes will all be marked as validated, including
-  // flushes for other streams on the same channel. Once a validation has been
-  // sent, it will return the highest validated flush id for the stream.
-  // If the validation fails (which can only happen upon context lost), the
-  // highest validated flush id will not change. If no flush ID were ever
-  // validated then it will return 0 (Note the lowest valid flush ID is 1).
-  uint32_t ValidateFlushIDReachedServer(int32_t stream_id, bool force_validate);
-
-  // Returns the highest validated flush ID for a given stream.
-  uint32_t GetHighestValidatedFlushID(int32_t stream_id);
-
- private:
-  friend class base::RefCountedThreadSafe<GpuChannelHost>;
-
-  // A filter used internally to route incoming messages from the IO thread
-  // to the correct message loop. It also maintains some shared state between
-  // all the contexts.
-  class MessageFilter : public IPC::MessageFilter {
-   public:
-    MessageFilter();
-
-    // Called on the IO thread.
-    void AddRoute(int32_t route_id,
-                  base::WeakPtr<IPC::Listener> listener,
-                  scoped_refptr<base::SingleThreadTaskRunner> task_runner);
-    // Called on the IO thread.
-    void RemoveRoute(int32_t route_id);
-
-    // IPC::MessageFilter implementation
-    // (called on the IO thread):
-    bool OnMessageReceived(const IPC::Message& msg) override;
-    void OnChannelError() override;
-
-    // The following methods can be called on any thread.
-
-    // Whether the channel is lost.
-    bool IsLost() const;
-
-   private:
-    struct ListenerInfo {
-      ListenerInfo();
-      ListenerInfo(const ListenerInfo& other);
-      ~ListenerInfo();
-
-      base::WeakPtr<IPC::Listener> listener;
-      scoped_refptr<base::SingleThreadTaskRunner> task_runner;
-    };
-
-    ~MessageFilter() override;
-
-    // Threading notes: |listeners_| is only accessed on the IO thread. Every
-    // other field is protected by |lock_|.
-    base::hash_map<int32_t, ListenerInfo> listeners_;
-
-    // Protects all fields below this one.
-    mutable base::Lock lock_;
-
-    // Whether the channel has been lost.
-    bool lost_;
-  };
-
-  struct StreamFlushInfo {
-    StreamFlushInfo();
-    StreamFlushInfo(const StreamFlushInfo& other);
-    ~StreamFlushInfo();
-
-    // These are global per stream.
-    uint32_t next_stream_flush_id;
-    uint32_t flushed_stream_flush_id;
-    uint32_t verified_stream_flush_id;
-
-    // These are local per context.
-    bool flush_pending;
-    int32_t route_id;
-    int32_t put_offset;
-    uint32_t flush_count;
-    uint32_t flush_id;
-    std::vector<ui::LatencyInfo> latency_info;
-  };
-
-  GpuChannelHost(GpuChannelHostFactory* factory,
-                 int channel_id,
-                 const gpu::GPUInfo& gpu_info,
-                 gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager);
-  ~GpuChannelHost() override;
-  void Connect(const IPC::ChannelHandle& channel_handle,
-               base::WaitableEvent* shutdown_event);
-  bool InternalSend(IPC::Message* msg);
-  void InternalFlush(StreamFlushInfo* flush_info);
-
-  // Threading notes: all fields are constant during the lifetime of |this|
-  // except:
-  // - |next_image_id_|, atomic type
-  // - |next_route_id_|, atomic type
-  // - |next_stream_id_|, atomic type
-  // - |channel_| and |stream_flush_info_|, protected by |context_lock_|
-  GpuChannelHostFactory* const factory_;
-
-  const int channel_id_;
-  const gpu::GPUInfo gpu_info_;
-
-  scoped_refptr<MessageFilter> channel_filter_;
-
-  gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
-
-  // A filter for sending messages from thread other than the main thread.
-  scoped_refptr<IPC::SyncMessageFilter> sync_filter_;
-
-  // Image IDs are allocated in sequence.
-  base::AtomicSequenceNumber next_image_id_;
-
-  // Route IDs are allocated in sequence.
-  base::AtomicSequenceNumber next_route_id_;
-
-  // Stream IDs are allocated in sequence.
-  base::AtomicSequenceNumber next_stream_id_;
-
-  // Protects channel_ and stream_flush_info_.
-  mutable base::Lock context_lock_;
-  scoped_ptr<IPC::SyncChannel> channel_;
-  base::hash_map<int32_t, StreamFlushInfo> stream_flush_info_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuChannelHost);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_