Make gpu black list work again on Linux

content/browser/renderer_host/gpu_message_filter.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.
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include "content/browser/renderer_host/gpu_message_filter.h"
 
@@ skipping 16 matching lines @@
 
 GpuMessageFilter::~GpuMessageFilter() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 }
 
 bool GpuMessageFilter::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(GpuMessageFilter, message)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuHostMsg_EstablishGpuChannel,
                                     OnEstablishGpuChannel)
+    IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuHostMsg_HasGpuProcess, OnHasGpuProcess)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void GpuMessageFilter::OnEstablishGpuChannel(
     CauseForGpuLaunch cause_for_gpu_launch,
     IPC::Message* reply_ptr) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   scoped_ptr<IPC::Message> reply(reply_ptr);
@@ skipping 26 matching lines @@
   bool allow_real_time_streams = false;
   host->EstablishGpuChannel(
       render_process_id_,
       ChildProcessHostImpl::ChildProcessUniqueIdToTracingProcessId(
           render_process_id_),
       preempts, allow_view_command_buffers, allow_real_time_streams,
       base::Bind(&GpuMessageFilter::EstablishChannelCallback,
                  weak_ptr_factory_.GetWeakPtr(), base::Passed(&reply)));
 }
 
+void GpuMessageFilter::OnHasGpuProcess(IPC::Message* reply_ptr) {
+  scoped_ptr<IPC::Message> reply(reply_ptr);
+  GpuProcessHost::GetProcessHandles(
+      base::Bind(&GpuMessageFilter::GetGpuProcessHandlesCallback,
+                 weak_ptr_factory_.GetWeakPtr(), base::Passed(&reply)));
+}
+
 void GpuMessageFilter::EstablishChannelCallback(
     scoped_ptr<IPC::Message> reply,
     const IPC::ChannelHandle& channel,
     const gpu::GPUInfo& gpu_info) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   GpuHostMsg_EstablishGpuChannel::WriteReplyParams(
       reply.get(), render_process_id_, channel, gpu_info);
   Send(reply.release());
 }
 
+void GpuMessageFilter::GetGpuProcessHandlesCallback(
+    scoped_ptr<IPC::Message> reply,
+    const std::list<base::ProcessHandle>& handles) {
+  bool has_gpu_process = handles.size() > 0;
+  GpuHostMsg_HasGpuProcess::WriteReplyParams(reply.get(), has_gpu_process);
+  Send(reply.release());
+}
+
 }  // namespace content