Make disabling accelerated VPX decoding a GPU driver bug workaround.

gpu/ipc/service/gpu_channel_manager.cc

Index: gpu/ipc/service/gpu_channel_manager.cc
diff --git a/gpu/ipc/service/gpu_channel_manager.cc b/gpu/ipc/service/gpu_channel_manager.cc
index 14779657bae903d01b2e16b710eb82bc10e8dc53..31dd336935da6ef074afd01fa31eea6a9deafa67 100644
--- a/gpu/ipc/service/gpu_channel_manager.cc
+++ b/gpu/ipc/service/gpu_channel_manager.cc
@@ -46,6 +46,7 @@ const int kMaxKeepAliveTimeMs = 200;
 
 GpuChannelManager::GpuChannelManager(
     const GpuPreferences& gpu_preferences,
+    const GpuDriverBugWorkarounds& workarounds,
     GpuChannelManagerDelegate* delegate,
     GpuWatchdogThread* watchdog,
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
@@ -57,7 +58,7 @@ GpuChannelManager::GpuChannelManager(
     : task_runner_(task_runner),
       io_task_runner_(io_task_runner),
       gpu_preferences_(gpu_preferences),
-      gpu_driver_bug_workarounds_(base::CommandLine::ForCurrentProcess()),
+      gpu_driver_bug_workarounds_(workarounds),
       delegate_(delegate),
       watchdog_(watchdog),
       share_group_(new gl::GLShareGroup()),