Blacklist GLX indirect rendering

content/browser/gpu/gpu_process_host.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/browser/gpu/gpu_process_host.h"
 
 #include "base/base64.h"
 #include "base/base_switches.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 734 matching lines @@
 
   Send(new GpuMsg_DeleteImage(client_id, image_id, sync_point));
 }
 
 void GpuProcessHost::OnInitialized(bool result, const gpu::GPUInfo& gpu_info) {
   UMA_HISTOGRAM_BOOLEAN("GPU.GPUProcessInitialized", result);
   initialized_ = result;
 
   if (!initialized_)
     GpuDataManagerImpl::GetInstance()->OnGpuProcessInitFailure();
+  else
+    GpuDataManagerImpl::GetInstance()->UpdateGpuInfo(gpu_info);

[piman, 2014/03/11 21:32:45]

This is needed to avoid races.
GpuChildThread sends GpuHostMsg_GraphicsInfoCollected at the end of
GpuChildThread::OnInitialize which does this too, however
GpuHostMsg_GraphicsInfoCollected is picked up by the UI thread, whereas there
could be a channel request on the IO thread. If the UI thread is blocked
(indeed, maybe waiting for the channel to open), the channel request will
proceed before we can process the GpuHostMsg_GraphicsInfoCollected, taking an
out-of-date info.

 }
 
 void GpuProcessHost::OnChannelEstablished(
     const IPC::ChannelHandle& channel_handle) {
   TRACE_EVENT0("gpu", "GpuProcessHost::OnChannelEstablished");
 
   if (channel_requests_.empty()) {
     // This happens when GPU process is compromised.
     RouteOnUIThread(GpuHostMsg_OnLogMessage(
         logging::LOG_WARNING,
@@ skipping 458 matching lines @@
   TRACE_EVENT0("gpu", "GpuProcessHost::OnCacheShader");
   ClientIdToShaderCacheMap::iterator iter =
       client_id_to_shader_cache_.find(client_id);
   // If the cache doesn't exist then this is an off the record profile.
   if (iter == client_id_to_shader_cache_.end())
     return;
   iter->second->Cache(GetShaderPrefixKey() + ":" + key, shader);
 }
 
 }  // namespace content