gpu, cmaa: add glApplyScreenSpaceAntialiasingCHROMIUM unittests

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

 // Copyright 2014 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.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 5465 matching lines @@
     return error::kUnknownCommand;
   }
 
   glBlendBarrierKHR();
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleApplyScreenSpaceAntialiasingCHROMIUM(
     uint32_t immediate_data_size,
     const volatile void* cmd_data) {
-  if (!features().chromium_screen_space_antialiasing) {
-    return error::kUnknownCommand;
-  }
-
   DoApplyScreenSpaceAntialiasingCHROMIUM();
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderImpl::HandleUniformMatrix4fvStreamTextureMatrixCHROMIUMImmediate(
     uint32_t immediate_data_size,
     const volatile void* cmd_data) {
   const volatile gles2::cmds::
       UniformMatrix4fvStreamTextureMatrixCHROMIUMImmediate& c = *static_cast<
@@ skipping 121 matching lines @@
         state_.enable_flags.cached_sample_alpha_to_one_ext = enabled;
         return true;
       }
       return false;
     default:
       NOTREACHED();
       return false;
   }
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_