Rename buffer_types_traits.{cc,h} to match normal conventions.

ui/gfx/mojo/buffer_types_traits.cc

-// 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.
-
-#include "ui/gfx/mojo/buffer_types_traits.h"
-
-#include "mojo/public/cpp/system/platform_handle.h"
-
-namespace mojo {
-
-void* StructTraits<gfx::mojom::NativePixmapHandleDataView,
-                   gfx::NativePixmapHandle>::
-    SetUpContext(const gfx::NativePixmapHandle& pixmap_handle) {
-  return new PixmapHandleFdList();
-}
-
-void StructTraits<gfx::mojom::NativePixmapHandleDataView,
-                  gfx::NativePixmapHandle>::
-    TearDownContext(const gfx::NativePixmapHandle& handle, void* context) {
-  delete static_cast<PixmapHandleFdList*>(context);
-}
-
-std::vector<mojo::ScopedHandle> StructTraits<
-    gfx::mojom::NativePixmapHandleDataView,
-    gfx::NativePixmapHandle>::fds(const gfx::NativePixmapHandle& pixmap_handle,
-                                  void* context) {
-  PixmapHandleFdList* handles = static_cast<PixmapHandleFdList*>(context);
-#if defined(USE_OZONE)
-  if (handles->empty()) {
-    // Generate the handles here, but do not send them yet.
-    for (const base::FileDescriptor& fd : pixmap_handle.fds) {
-      base::PlatformFile platform_file = fd.fd;
-      handles->push_back(mojo::WrapPlatformFile(platform_file));
-    }
-    return PixmapHandleFdList(handles->size());
-  }
-#endif  // defined(USE_OZONE)
-  return std::move(*handles);
-}
-
-bool StructTraits<
-    gfx::mojom::NativePixmapHandleDataView,
-    gfx::NativePixmapHandle>::Read(gfx::mojom::NativePixmapHandleDataView data,
-                                   gfx::NativePixmapHandle* out) {
-#if defined(USE_OZONE)
-  mojo::ArrayDataView<mojo::ScopedHandle> handles_data_view;
-  data.GetFdsDataView(&handles_data_view);
-  for (size_t i = 0; i < handles_data_view.size(); ++i) {
-    mojo::ScopedHandle handle = handles_data_view.Take(i);
-    base::PlatformFile platform_file;
-    if (mojo::UnwrapPlatformFile(std::move(handle), &platform_file) !=
-        MOJO_RESULT_OK)
-      return false;
-    constexpr bool auto_close = true;
-    out->fds.push_back(base::FileDescriptor(platform_file, auto_close));
-  }
-  return data.ReadPlanes(&out->planes);
-#else
-  return false;
-#endif
-}
-
-mojo::ScopedHandle StructTraits<gfx::mojom::GpuMemoryBufferHandleDataView,
-                                gfx::GpuMemoryBufferHandle>::
-    shared_memory_handle(const gfx::GpuMemoryBufferHandle& handle) {
-  if (handle.type != gfx::SHARED_MEMORY_BUFFER)
-    return mojo::ScopedHandle();
-#if defined(OS_MACOSX)
-  base::SharedMemoryHandle shm_handle = handle.handle;
-  size_t num_bytes = 0;
-  if (!shm_handle.GetSize(&num_bytes))
-    return mojo::ScopedHandle();
-  mojo::ScopedSharedBufferHandle scoped_handle =
-      mojo::WrapSharedMemoryHandle(shm_handle, num_bytes, false);
-  mojo::Handle mojo_handle = scoped_handle.release();
-  return mojo::MakeScopedHandle(mojo_handle);
-#else  // defined(OS_MACOSX)
-  base::PlatformFile platform_file = base::kInvalidPlatformFile;
-#if defined(OS_WIN)
-  platform_file = handle.handle.GetHandle();
-#else
-  platform_file = handle.handle.fd;
-#endif
-  return mojo::WrapPlatformFile(platform_file);
-#endif  // defined(OS_MACOSX)
-}
-
-const gfx::NativePixmapHandle&
-StructTraits<gfx::mojom::GpuMemoryBufferHandleDataView,
-             gfx::GpuMemoryBufferHandle>::
-    native_pixmap_handle(const gfx::GpuMemoryBufferHandle& handle) {
-#if defined(USE_OZONE)
-  return handle.native_pixmap_handle;
-#else
-  static gfx::NativePixmapHandle pixmap_handle;
-  return pixmap_handle;
-#endif
-}
-
-mojo::ScopedHandle StructTraits<gfx::mojom::GpuMemoryBufferHandleDataView,
-                                gfx::GpuMemoryBufferHandle>::
-    mach_port(const gfx::GpuMemoryBufferHandle& handle) {
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-  if (handle.type != gfx::IO_SURFACE_BUFFER)
-    return mojo::ScopedHandle();
-  return mojo::WrapMachPort(handle.mach_port.get());
-#else
-  return mojo::ScopedHandle();
-#endif
-}
-
-bool StructTraits<gfx::mojom::GpuMemoryBufferHandleDataView,
-                  gfx::GpuMemoryBufferHandle>::
-    Read(gfx::mojom::GpuMemoryBufferHandleDataView data,
-         gfx::GpuMemoryBufferHandle* out) {
-  if (!data.ReadType(&out->type) || !data.ReadId(&out->id))
-    return false;
-
-  if (out->type == gfx::SHARED_MEMORY_BUFFER) {
-    mojo::ScopedHandle handle = data.TakeSharedMemoryHandle();
-    if (handle.is_valid()) {
-#if defined(OS_MACOSX)
-      mojo::Handle mojo_handle = handle.release();
-      mojo::ScopedSharedBufferHandle buffer_handle =
-          mojo::MakeScopedHandle(mojo::SharedBufferHandle(mojo_handle.value()));
-      MojoResult unwrap_result = mojo::UnwrapSharedMemoryHandle(
-          std::move(buffer_handle), &out->handle, nullptr, nullptr);
-      if (unwrap_result != MOJO_RESULT_OK)
-        return false;
-#else  // defined(OS_MACOSX)
-      base::PlatformFile platform_file;
-      MojoResult unwrap_result =
-          mojo::UnwrapPlatformFile(std::move(handle), &platform_file);
-      if (unwrap_result != MOJO_RESULT_OK)
-        return false;
-#if defined(OS_WIN)
-      out->handle =
-          base::SharedMemoryHandle(platform_file, base::GetCurrentProcId());
-#else
-      out->handle = base::SharedMemoryHandle(platform_file, true);
-#endif
-#endif  // defined(OS_MACOSX)
-    }
-
-    out->offset = data.offset();
-    out->stride = data.stride();
-  }
-#if defined(USE_OZONE)
-  if (out->type == gfx::OZONE_NATIVE_PIXMAP &&
-      !data.ReadNativePixmapHandle(&out->native_pixmap_handle))
-    return false;
-#endif
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-  if (out->type == gfx::IO_SURFACE_BUFFER) {
-    mach_port_t mach_port;
-    MojoResult unwrap_result =
-        mojo::UnwrapMachPort(data.TakeMachPort(), &mach_port);
-    if (unwrap_result != MOJO_RESULT_OK)
-      return false;
-    out->mach_port.reset(mach_port);
-  }
-#endif
-  return true;
-}
-
-}  // namespace mojo