Load the GL_KHR_debug entry points and log messages they produce.

gpu/command_buffer/service/feature_info.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 "gpu/command_buffer/service/feature_info.h"
 
 #include <stddef.h>
 
 #include <set>
 #include <vector>
@@ skipping 1392 matching lines @@
 
   if (gl_version_info_->IsLowerThanGL(4, 3)) {
     // crbug.com/481184.
     // GL_PRIMITIVE_RESTART_FIXED_INDEX is only available on Desktop GL 4.3+,
     // but we emulate ES 3.0 on top of Desktop GL 4.2+.
     feature_flags_.emulate_primitive_restart_fixed_index = true;
   }
 
   feature_flags_.angle_robust_client_memory =
       extensions.Contains("GL_ANGLE_robust_client_memory");
+
+  feature_flags_.khr_debug = gl_version_info_->IsAtLeastGL(4, 3) ||
+                             gl_version_info_->IsAtLeastGLES(3, 2) ||
+                             extensions.Contains("GL_KHR_debug");
 }
 
 bool FeatureInfo::IsES3Capable() const {
   if (!enable_unsafe_es3_apis_switch_)
     return false;
   if (workarounds_.disable_texture_storage)
     return false;
   if (gl_version_info_)
     return gl_version_info_->is_es3_capable;
   return false;
@@ skipping 131 matching lines @@
   if (pos == std::string::npos) {
     extensions_ += (extensions_.empty() ? "" : " ") + str;
   }
 }
 
 FeatureInfo::~FeatureInfo() {
 }
 
 }  // namespace gles2
 }  // namespace gpu