content: Remove some unused code.

content/common/child_process_host_impl.cc

 // 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.
 
 #include "content/common/child_process_host_impl.h"
 
 #include <limits>
 
 #include "base/atomic_sequence_num.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/hash.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/numerics/safe_math.h"
 #include "base/path_service.h"
 #include "base/process/process_metrics.h"
 #include "base/rand_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/lock.h"
 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "content/common/child_process_messages.h"
 #include "content/public/common/child_process_host_delegate.h"
 #include "content/public/common/content_paths.h"
 #include "content/public/common/content_switches.h"
-#include "gpu/ipc/client/gpu_memory_buffer_impl_shared_memory.h"
 #include "ipc/ipc.mojom.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_channel_mojo.h"
 #include "ipc/ipc_logging.h"
 #include "ipc/message_filter.h"
 #include "mojo/edk/embedder/embedder.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 
 #if defined(OS_LINUX)
 #include "base/linux_util.h"
@@ skipping 196 matching lines @@
       handled = true;
       break;
     }
   }
 
   if (!handled) {
     handled = true;
     IPC_BEGIN_MESSAGE_MAP(ChildProcessHostImpl, msg)
       IPC_MESSAGE_HANDLER(ChildProcessHostMsg_ShutdownRequest,
                           OnShutdownRequest)
-      // NB: The SyncAllocateGpuMemoryBuffer and DeletedGpuMemoryBuffer IPCs are
-      // handled here for non-renderer child processes. For renderer processes,
-      // they are handled in RenderMessageFilter.
-      IPC_MESSAGE_HANDLER(ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer,
-                          OnAllocateGpuMemoryBuffer)
-      IPC_MESSAGE_HANDLER(ChildProcessHostMsg_DeletedGpuMemoryBuffer,
-                          OnDeletedGpuMemoryBuffer)
       IPC_MESSAGE_UNHANDLED(handled = false)
     IPC_END_MESSAGE_MAP()
 
     if (!handled)
       handled = delegate_->OnMessageReceived(msg);
   }
 
 #ifdef IPC_MESSAGE_LOG_ENABLED
   if (logger->Enabled())
     logger->OnPostDispatchMessage(msg);
@@ skipping 27 matching lines @@
 
 void ChildProcessHostImpl::OnBadMessageReceived(const IPC::Message& message) {
   delegate_->OnBadMessageReceived(message);
 }
 
 void ChildProcessHostImpl::OnShutdownRequest() {
   if (delegate_->CanShutdown())
     Send(new ChildProcessMsg_Shutdown());
 }
 
-void ChildProcessHostImpl::OnAllocateGpuMemoryBuffer(
-    gfx::GpuMemoryBufferId id,
-    uint32_t width,
-    uint32_t height,
-    gfx::BufferFormat format,
-    gfx::BufferUsage usage,
-    gfx::GpuMemoryBufferHandle* handle) {
-  // TODO(reveman): Add support for other types of GpuMemoryBuffers.
-
-  // AllocateGpuMemoryBuffer() will check if |width| and |height| are valid
-  // and handle failure in a controlled way when not. We just need to make
-  // sure |usage| is supported here.
-  if (gpu::GpuMemoryBufferImplSharedMemory::IsUsageSupported(usage)) {
-    *handle = gpu::GpuMemoryBufferImplSharedMemory::AllocateGpuMemoryBuffer(
-        id, gfx::Size(width, height), format);
-  }
-}
-
-void ChildProcessHostImpl::OnDeletedGpuMemoryBuffer(
-    gfx::GpuMemoryBufferId id,
-    const gpu::SyncToken& sync_token) {
-  // Note: Nothing to do here as ownership of shared memory backed
-  // GpuMemoryBuffers is passed with IPC.
-}
-
 }  // namespace content