gl_context_glx: add workaround to create default context

content/browser/gpu/gpu_data_manager_impl_private.cc

 // Copyright (c) 2013 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_data_manager_impl_private.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 728 matching lines @@
   }
 
   if (ShouldDisableAcceleratedVideoDecode(command_line)) {
     if (gpu_preferences) {
       gpu_preferences->disable_accelerated_video_decode = true;
     } else {
       command_line->AppendSwitch(switches::kDisableAcceleratedVideoDecode);
     }
   }
 
+  if (gpu_driver_bugs_.find(gpu::CREATE_DEFAULT_CONTEXT) !=

[Ken Russell (switch to Gerrit), 2016/11/03 21:30:02]

See below -- please rename to something like CREATE_DEFAULT_GL_CONTEXT here and
throughout.

[Corentin Wallez, 2016/11/03 21:41:45]

Done

+      gpu_driver_bugs_.end()) {
+    command_line->AppendSwitch(switches::kCreateDefaultContext);
+  }
+
 #if defined(OS_WIN)
   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_ACCELERATED_VPX_DECODE) &&
       gpu_preferences) {
     gpu_preferences->enable_accelerated_vpx_decode =
         gpu::GpuPreferences::VPX_VENDOR_NONE;
   }
 #endif
 
 #if defined(ENABLE_WEBRTC)
   if (IsFeatureBlacklisted(gpu::GPU_FEATURE_TYPE_ACCELERATED_VIDEO_ENCODE) &&
@@ skipping 539 matching lines @@
   gpu_info_.context_info_state = gpu::kCollectInfoFatalFailure;
 #if defined(OS_WIN)
   gpu_info_.dx_diagnostics_info_state = gpu::kCollectInfoFatalFailure;
 #endif
   complete_gpu_info_already_requested_ = true;
   // Some observers might be waiting.
   NotifyGpuInfoUpdate();
 }
 
 }  // namespace content