ui: Cleanup class/struct forward declarations

services/ui/public/cpp/mojo_gpu_memory_buffer.cc

Index: services/ui/public/cpp/mojo_gpu_memory_buffer.cc
diff --git a/services/ui/public/cpp/mojo_gpu_memory_buffer.cc b/services/ui/public/cpp/mojo_gpu_memory_buffer.cc
deleted file mode 100644
index c0d776b567487378ccd1469d8b4cb33a800c2359..0000000000000000000000000000000000000000
--- a/services/ui/public/cpp/mojo_gpu_memory_buffer.cc
+++ /dev/null
@@ -1,132 +0,0 @@
-// 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.
-
-#include "services/ui/public/cpp/mojo_gpu_memory_buffer.h"
-
-#include <stdint.h>
-
-#include "base/logging.h"
-#include "base/memory/ptr_util.h"
-#include "base/memory/shared_memory.h"
-#include "base/numerics/safe_conversions.h"
-#include "build/build_config.h"
-#include "mojo/public/cpp/system/buffer.h"
-#include "mojo/public/cpp/system/platform_handle.h"
-#include "ui/gfx/buffer_format_util.h"
-
-namespace ui {
-
-// TODO(rjkroege): Support running a destructor callback as necessary.
-MojoGpuMemoryBufferImpl::~MojoGpuMemoryBufferImpl() {}
-
-// static
-std::unique_ptr<gfx::GpuMemoryBuffer> MojoGpuMemoryBufferImpl::Create(
-    const gfx::Size& size,
-    gfx::BufferFormat format,
-    gfx::BufferUsage usage) {
-  size_t bytes = gfx::BufferSizeForBufferFormat(size, format);
-
-  mojo::ScopedSharedBufferHandle handle =
-      mojo::SharedBufferHandle::Create(bytes);
-  if (!handle.is_valid())
-    return nullptr;
-
-  base::SharedMemoryHandle platform_handle;
-  size_t shared_memory_size;
-  bool readonly;
-  MojoResult result = mojo::UnwrapSharedMemoryHandle(
-      std::move(handle), &platform_handle, &shared_memory_size, &readonly);
-  if (result != MOJO_RESULT_OK)
-    return nullptr;
-  DCHECK_EQ(shared_memory_size, bytes);
-
-  auto shared_memory =
-      base::MakeUnique<base::SharedMemory>(platform_handle, readonly);
-  const int stride = base::checked_cast<int>(
-      gfx::RowSizeForBufferFormat(size.width(), format, 0));
-  return base::WrapUnique(new MojoGpuMemoryBufferImpl(
-      size, format, std::move(shared_memory), 0, stride));
-}
-
-// static
-std::unique_ptr<gfx::GpuMemoryBuffer> MojoGpuMemoryBufferImpl::CreateFromHandle(
-    const gfx::GpuMemoryBufferHandle& handle,
-    const gfx::Size& size,
-    gfx::BufferFormat format,
-    gfx::BufferUsage usage) {
-  DCHECK_EQ(handle.type, gfx::SHARED_MEMORY_BUFFER);
-  DCHECK(base::SharedMemory::IsHandleValid(handle.handle));
-  const bool readonly = false;
-  auto shared_memory =
-      base::MakeUnique<base::SharedMemory>(handle.handle, readonly);
-  return base::WrapUnique(new MojoGpuMemoryBufferImpl(
-      size, format, std::move(shared_memory), handle.offset, handle.stride));
-}
-
-MojoGpuMemoryBufferImpl* MojoGpuMemoryBufferImpl::FromClientBuffer(
-    ClientBuffer buffer) {
-  return reinterpret_cast<MojoGpuMemoryBufferImpl*>(buffer);
-}
-
-const unsigned char* MojoGpuMemoryBufferImpl::GetMemory() const {
-  return static_cast<const unsigned char*>(shared_memory_->memory());
-}
-
-bool MojoGpuMemoryBufferImpl::Map() {
-  DCHECK(!mapped_);
-  DCHECK_EQ(static_cast<size_t>(stride_),
-            gfx::RowSizeForBufferFormat(size_.width(), format_, 0));
-  const size_t buffer_size = gfx::BufferSizeForBufferFormat(size_, format_);
-  const size_t map_size = offset_ + buffer_size;
-  if (!shared_memory_->Map(map_size))
-    return false;
-  mapped_ = true;
-  return true;
-}
-
-void* MojoGpuMemoryBufferImpl::memory(size_t plane) {
-  DCHECK(mapped_);
-  DCHECK_LT(plane, gfx::NumberOfPlanesForBufferFormat(format_));
-  return reinterpret_cast<uint8_t*>(shared_memory_->memory()) + offset_ +
-         gfx::BufferOffsetForBufferFormat(size_, format_, plane);
-}
-
-void MojoGpuMemoryBufferImpl::Unmap() {
-  DCHECK(mapped_);
-  shared_memory_->Unmap();
-  mapped_ = false;
-}
-
-int MojoGpuMemoryBufferImpl::stride(size_t plane) const {
-  DCHECK_LT(plane, gfx::NumberOfPlanesForBufferFormat(format_));
-  return base::checked_cast<int>(gfx::RowSizeForBufferFormat(
-      size_.width(), format_, static_cast<int>(plane)));
-}
-
-gfx::GpuMemoryBufferHandle MojoGpuMemoryBufferImpl::GetHandle() const {
-  gfx::GpuMemoryBufferHandle handle;
-  handle.type = gfx::SHARED_MEMORY_BUFFER;
-  handle.handle = shared_memory_->handle();
-  handle.offset = offset_;
-  handle.stride = stride_;
-
-  return handle;
-}
-
-gfx::GpuMemoryBufferType MojoGpuMemoryBufferImpl::GetBufferType() const {
-  return gfx::SHARED_MEMORY_BUFFER;
-}
-
-MojoGpuMemoryBufferImpl::MojoGpuMemoryBufferImpl(
-    const gfx::Size& size,
-    gfx::BufferFormat format,
-    std::unique_ptr<base::SharedMemory> shared_memory,
-    uint32_t offset,
-    int32_t stride)
-    : GpuMemoryBufferImpl(gfx::GenericSharedMemoryId(0), size, format),
-      shared_memory_(std::move(shared_memory)),
-      offset_(offset),
-      stride_(stride) {}
-
-}  // namespace ui