Remove Mojo GLES2 API

components/mus/public/cpp/lib/gles2_context.cc

 // 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.
 
 #include "components/mus/public/cpp/gles2_context.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
 
 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "gpu/command_buffer/client/shared_memory_limits.h"
 #include "gpu/command_buffer/client/transfer_buffer.h"
 #include "mojo/public/cpp/system/core.h"
 
 namespace mus {
 
 GLES2Context::GLES2Context(const std::vector<int32_t>& attribs,
-                           mojo::ScopedMessagePipeHandle command_buffer_handle,
-                           MojoGLES2ContextLost lost_callback,
-                           void* closure)
-    : command_buffer_(attribs, std::move(command_buffer_handle)),
-      lost_callback_(lost_callback),
-      closure_(closure) {}
+                           mojo::ScopedMessagePipeHandle command_buffer_handle)
+    : command_buffer_(attribs, std::move(command_buffer_handle)) {}
 
 GLES2Context::~GLES2Context() {}
 
 bool GLES2Context::Initialize() {
   if (!command_buffer_.Initialize())
     return false;
 
   constexpr gpu::SharedMemoryLimits default_limits;
   gles2_helper_.reset(new gpu::gles2::GLES2CmdHelper(&command_buffer_));
   if (!gles2_helper_->Initialize(default_limits.command_buffer_size))
     return false;
   gles2_helper_->SetAutomaticFlushes(false);
   transfer_buffer_.reset(new gpu::TransferBuffer(gles2_helper_.get()));
   gpu::Capabilities capabilities = command_buffer_.GetCapabilities();
   bool bind_generates_resource =
       !!capabilities.bind_generates_resource_chromium;
   // TODO(piman): Some contexts (such as compositor) want this to be true, so
   // this needs to be a public parameter.
   bool lose_context_when_out_of_memory = false;
   bool support_client_side_arrays = false;
   implementation_.reset(new gpu::gles2::GLES2Implementation(
       gles2_helper_.get(), NULL, transfer_buffer_.get(),
       bind_generates_resource, lose_context_when_out_of_memory,
       support_client_side_arrays, &command_buffer_));
   if (!implementation_->Initialize(default_limits.start_transfer_buffer_size,
                                    default_limits.min_transfer_buffer_size,
                                    default_limits.max_transfer_buffer_size,
                                    default_limits.mapped_memory_reclaim_limit))
     return false;
-  implementation_->SetLostContextCallback(
-      base::Bind(&GLES2Context::OnLostContext, base::Unretained(this)));
   return true;
 }
 
-void GLES2Context::OnLostContext() {
-  lost_callback_(closure_);
-}
-
 }  // namespace mus