Set GpuPreferences correctly in GpuDataManagerImplPrivate::AppendGpuCommandLine.

content/browser/gpu/gpu_data_manager_impl_private.h

Index: content/browser/gpu/gpu_data_manager_impl_private.h
diff --git a/content/browser/gpu/gpu_data_manager_impl_private.h b/content/browser/gpu/gpu_data_manager_impl_private.h
index 420fc7c5310d576dce4b9d01151b5e477d0cc6f5..229d510dae80b138bef0a3ffd91fbdd2fe4cd86c 100644
--- a/content/browser/gpu/gpu_data_manager_impl_private.h
+++ b/content/browser/gpu/gpu_data_manager_impl_private.h
@@ -29,6 +29,7 @@ class CommandLine;
 }
 
 namespace gpu {
+struct GpuPreferences;
 struct VideoMemoryUsageStats;
 }
 
@@ -74,7 +75,8 @@ class CONTENT_EXPORT GpuDataManagerImplPrivate {
 
   void AppendRendererCommandLine(base::CommandLine* command_line) const;
 
-  void AppendGpuCommandLine(base::CommandLine* command_line) const;
+  void AppendGpuCommandLine(base::CommandLine* command_line,
+                            gpu::GpuPreferences* gpu_preferences) const;
 
   void UpdateRendererWebPrefs(WebPreferences* prefs) const;