Add GpuMemoryBuffer CreateFromClientId interface

content/browser/gpu/browser_gpu_memory_buffer_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 CONTENT_BROWSER_GPU_BROWSER_GPU_MEMORY_BUFFER_MANAGER_H_
 #define CONTENT_BROWSER_GPU_BROWSER_GPU_MEMORY_BUFFER_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 55 matching lines @@
   // Overridden from gpu::GpuMemoryBufferManager:
   std::unique_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
       const gfx::Size& size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage,
       gpu::SurfaceHandle surface_handle) override;
   std::unique_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBufferFromHandle(
       const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,
       gfx::BufferFormat format) override;
+  std::unique_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBufferFromClientId(
+      int client_id,
+      const gfx::GpuMemoryBufferId& gpu_memory_buffer_id) override;
   gfx::GpuMemoryBuffer* GpuMemoryBufferFromClientBuffer(
       ClientBuffer buffer) override;
   void SetDestructionSyncToken(gfx::GpuMemoryBuffer* buffer,
                                const gpu::SyncToken& sync_token) override;
 
   // Overridden from base::trace_event::MemoryDumpProvider:
   bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
                     base::trace_event::ProcessMemoryDump* pmd) override;
 
   void AllocateGpuMemoryBufferForChildProcess(
       gfx::GpuMemoryBufferId id,
       const gfx::Size& size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage,
       base::ProcessHandle child_process_handle,
       int child_client_id,
       const AllocationCallback& callback);
   void ChildProcessDeletedGpuMemoryBuffer(
       gfx::GpuMemoryBufferId id,
       base::ProcessHandle child_process_handle,
       int child_client_id,
       const gpu::SyncToken& sync_token);
   void ProcessRemoved(base::ProcessHandle process_handle, int client_id);
 
   bool IsNativeGpuMemoryBufferConfiguration(gfx::BufferFormat format,
                                             gfx::BufferUsage usage) const;
 
  private:
   struct BufferInfo {
-    BufferInfo()
-        : type(gfx::EMPTY_BUFFER),
-          format(gfx::BufferFormat::RGBA_8888),
-          usage(gfx::BufferUsage::GPU_READ),
-          gpu_host_id(0) {}
+    BufferInfo();
     BufferInfo(const gfx::Size& size,
                gfx::GpuMemoryBufferType type,
                gfx::BufferFormat format,
                gfx::BufferUsage usage,
-               int gpu_host_id)
-        : size(size),
-          type(type),
-          format(format),
-          usage(usage),
-          gpu_host_id(gpu_host_id) {}
+               int gpu_host_id);
+    BufferInfo(const BufferInfo& other);
+    ~BufferInfo();
 
     gfx::Size size;
-    gfx::GpuMemoryBufferType type;
-    gfx::BufferFormat format;
-    gfx::BufferUsage usage;
-    int gpu_host_id;
+    gfx::GpuMemoryBufferType type = gfx::EMPTY_BUFFER;
+    gfx::BufferFormat format = gfx::BufferFormat::RGBA_8888;
+    gfx::BufferUsage usage = gfx::BufferUsage::GPU_READ;
+    int gpu_host_id = 0;
   };
 
   struct CreateGpuMemoryBufferRequest;
   struct CreateGpuMemoryBufferFromHandleRequest;
+  struct CreateGpuMemoryBufferFromClientIdRequest;
 
   using CreateDelegate = base::Callback<void(GpuProcessHost* host,
                                              gfx::GpuMemoryBufferId id,
                                              const gfx::Size& size,
                                              gfx::BufferFormat format,
                                              gfx::BufferUsage usage,
                                              int client_id,
                                              const CreateCallback& callback)>;
 
   std::unique_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBufferForSurface(
       const gfx::Size& size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage,
       gpu::SurfaceHandle surface_handle);
 
   // Functions that handle synchronous buffer creation requests.
   void HandleCreateGpuMemoryBufferOnIO(CreateGpuMemoryBufferRequest* request);
   void HandleCreateGpuMemoryBufferFromHandleOnIO(
       CreateGpuMemoryBufferFromHandleRequest* request);
+  void HandleCreateGpuMemoryBufferFromClientIdOnIO(
+      CreateGpuMemoryBufferFromClientIdRequest* request);
   void HandleGpuMemoryBufferCreatedOnIO(
       CreateGpuMemoryBufferRequest* request,
       const gfx::GpuMemoryBufferHandle& handle);
 
   // Functions that implement asynchronous buffer creation.
   void CreateGpuMemoryBufferOnIO(const CreateDelegate& create_delegate,
                                  gfx::GpuMemoryBufferId id,
                                  const gfx::Size& size,
                                  gfx::BufferFormat format,
                                  gfx::BufferUsage usage,
@@ skipping 25 matching lines @@
   using BufferMap = base::hash_map<gfx::GpuMemoryBufferId, BufferInfo>;
   using ClientMap = base::hash_map<int, BufferMap>;
   ClientMap clients_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserGpuMemoryBufferManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_MEMORY_BUFFER_MANAGER_H_