gpu host: Delete GpuMsg_Finalize

content/common/gpu_host_messages.h

 // 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.
 
 // Multiply-included message file, hence no include guard here, but see below
 // for a much smaller-than-usual include guard section.
 
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "content/common/establish_channel_params.h"
@@ skipping 97 matching lines @@
 // These are messages from the browser to the GPU process.
 
 // Tells the GPU process to initialize itself. The browser explicitly
 // requests this be done so that we are guaranteed that the channel is set
 // up between the browser and GPU process before doing any work that might
 // potentially crash the GPU process. Detection of the child process
 // exiting abruptly is predicated on having the IPC channel set up.
 IPC_MESSAGE_CONTROL1(GpuMsg_Initialize,
                      gpu::GpuPreferences /* gpu_prefernces */)
 
-// Tells the GPU process to shutdown itself.
-IPC_MESSAGE_CONTROL0(GpuMsg_Finalize)
-
 // Tells the GPU process to create a new channel for communication with a
 // given client.  The channel name is returned in a
 // GpuHostMsg_ChannelEstablished message.  The client ID is passed so
 // that the GPU process reuses an existing channel to that process if it exists.
 // This ID is a unique opaque identifier generated by the browser process.
 // The client_tracing_id is a unique ID used for the purposes of tracing.
 IPC_MESSAGE_CONTROL1(GpuMsg_EstablishChannel,
                      content::EstablishChannelParams /* params */)
 
 // Tells the GPU process to close the channel identified by |client_id|.
@@ skipping 104 matching lines @@
                      gpu::GPUMemoryUmaStats /* GPU memory UMA stats */)
 
 // Message from GPU to add a GPU log message to the about:gpu page.
 IPC_MESSAGE_CONTROL3(GpuHostMsg_OnLogMessage,
                      int /*severity*/,
                      std::string /* header */,
                      std::string /* message */)
 
 // Sent by the GPU process to indicate that a fields trial has been activated.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_FieldTrialActivated, std::string /* name */)