WebGL 2: Fix nits when check vertexAttrib type with variable type in vertex shader

gpu/command_buffer/service/gles2_cmd_decoder.cc

 // Copyright (c) 2012 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.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>
@@ skipping 9105 matching lines @@
   glBindBuffer(
       GL_ARRAY_BUFFER,
       state_.bound_array_buffer.get() ? state_.bound_array_buffer->service_id()
                                       : 0);
 }
 
 bool GLES2DecoderImpl::AttribsTypeMatch() {
   for (uint32_t index = 0; index < group_->max_vertex_attribs(); index += 16) {
     uint32_t shader_attrib_written_mask =
         state_.current_program->vertex_input_type_written_mask(index);
-    uint32_t vao_attrib_written_mask =
-        state_.vertex_attrib_manager->attrib_type_written_mask(index);
+    uint32_t vao_attrib_enabled_mask =
+        state_.vertex_attrib_manager->attrib_enabled_mask(index);
 
     uint32_t vertex_attrib_base_type_mask =
-        (~vao_attrib_written_mask &
-        state_.GetGenericVertexAttribBaseTypeMask(index)) |
-        (vao_attrib_written_mask &
-        state_.vertex_attrib_manager->attrib_base_type_mask(index));
+        (~vao_attrib_enabled_mask &
+         state_.GetGenericVertexAttribBaseTypeMask(index)) |
+        (vao_attrib_enabled_mask &
+         state_.vertex_attrib_manager->attrib_base_type_mask(index));
 
     if ((state_.current_program->vertex_input_base_type_mask(index)
          & shader_attrib_written_mask) !=
          (vertex_attrib_base_type_mask & shader_attrib_written_mask)) {
       return false;
     }
   }
   return true;
 }
 
@@ skipping 8470 matching lines @@
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "base/macros.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu