Hookup driver_bug_workarounds with gl_tests properly.

gpu/config/gpu_util.h

Index: gpu/config/gpu_util.h
===================================================================
--- gpu/config/gpu_util.h	(revision 202179)
+++ gpu/config/gpu_util.h	(working copy)
@@ -12,6 +12,8 @@
 #include "gpu/config/gpu_switching_option.h"
 #include "gpu/gpu_export.h"
 
+class CommandLine;
+
 namespace gpu {
 
 // Maps string to GpuSwitchingOption; returns GPU_SWITCHING_UNKNOWN if an
@@ -26,6 +28,10 @@
 GPU_EXPORT void MergeFeatureSets(
     std::set<int>* dst, const std::set<int>& src);
 
+// Collect basic GPUInfo, compute the driver bug workarounds for the current
+// system, and append the |command_line|.
+GPU_EXPORT void ApplyGpuDriverBugWorkarounds(CommandLine* command_line);
+
 }  // namespace gpu
 
 #endif  // GPU_CONFIG_GPU_UTIL_H_