Refactor FeatureInfo so you can't request features.

gpu/command_buffer/service/feature_info.h

Index: gpu/command_buffer/service/feature_info.h
diff --git a/gpu/command_buffer/service/feature_info.h b/gpu/command_buffer/service/feature_info.h
index ec03789ac5cb1375d15b37c7c43c63aea963e34e..10dfeef878d2b366ff6086286dea37f0768f0dae 100644
--- a/gpu/command_buffer/service/feature_info.h
+++ b/gpu/command_buffer/service/feature_info.h
@@ -30,7 +30,6 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
     bool npot_ok;
     bool enable_texture_float_linear;
     bool enable_texture_half_float_linear;
-    bool chromium_webglsl;
     bool chromium_stream_texture;
     bool angle_translated_shader_source;
     bool angle_pack_reverse_row_order;
@@ -68,9 +67,8 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
   bool Initialize(const DisallowedFeatures& disallowed_features,
                   const char* allowed_features);
 
-  // Turns on certain features if they can be turned on. NULL turns on
-  // all available features.
-  void AddFeatures(const char* desired_features);
+  // Turns on certain features if they can be turned on.
+  void AddFeatures();
 
   const Validators* validators() const {
     return &validators_;