On ES or Core profile, we should be able to disable vertex attrib 0.

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 2675 matching lines @@
   // vertex_attrib_manager is set to default_vertex_attrib_manager by this call
   DoBindVertexArrayOES(0);
 
   query_manager_.reset(new QueryManager(this, feature_info_.get()));
 
   image_manager_.reset(new ImageManager);
 
   util_.set_num_compressed_texture_formats(
       validators_->compressed_texture_format.GetValues().size());
 
-  if (gfx::GetGLImplementation() != gfx::kGLImplementationEGLGLES2) {
-    // We have to enable vertex array 0 on OpenGL or it won't render. Note that
-    // OpenGL ES 2.0 does not have this issue.
+  if (!feature_info_->gl_version_info().BehavesLikeGLES()) {
+    // We have to enable vertex array 0 on GL with compatibility profile or it
+    // won't render. Note that ES or GL with core profile does not have this
+    // issue.
     glEnableVertexAttribArray(0);
   }
   glGenBuffersARB(1, &attrib_0_buffer_id_);
   glBindBuffer(GL_ARRAY_BUFFER, attrib_0_buffer_id_);
   glVertexAttribPointer(0, 1, GL_FLOAT, GL_FALSE, 0, NULL);
   glBindBuffer(GL_ARRAY_BUFFER, 0);
   glGenBuffersARB(1, &fixed_attrib_buffer_id_);
 
   state_.texture_units.resize(group_->max_texture_units());
   state_.sampler_units.resize(group_->max_texture_units());
@@ skipping 2215 matching lines @@
     glBindSampler(unit, sampler->service_id());
   } else {
     glBindSampler(unit, 0);
   }
 
   state_.sampler_units[unit] = sampler;
 }
 
 void GLES2DecoderImpl::DoDisableVertexAttribArray(GLuint index) {
   if (state_.vertex_attrib_manager->Enable(index, false)) {
-    if (index != 0 ||
-        gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2) {
+    if (index != 0 || feature_info_->gl_version_info().BehavesLikeGLES()) {
       glDisableVertexAttribArray(index);
     }
   } else {
     LOCAL_SET_GL_ERROR(
         GL_INVALID_VALUE,
         "glDisableVertexAttribArray", "index out of range");
   }
 }
 
 void GLES2DecoderImpl::DoDiscardFramebufferEXT(GLenum target,
@@ skipping 2907 matching lines @@
   // extension is available
   DCHECK(attrib->divisor() == 0 ||
       feature_info_->feature_flags().angle_instanced_arrays);
 
   if (feature_info_->feature_flags().angle_instanced_arrays)
     glVertexAttribDivisorANGLE(attrib_index, attrib->divisor());
   glBindBuffer(
       GL_ARRAY_BUFFER, state_.bound_array_buffer.get() ?
           state_.bound_array_buffer->service_id() : 0);
 
-  // Never touch vertex attribute 0's state (in particular, never
-  // disable it) when running on desktop GL because it will never be
-  // re-enabled.
-  if (attrib_index != 0 ||
-      gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2) {
+  // Never touch vertex attribute 0's state (in particular, never disable it)
+  // when running on desktop GL with compatibility profile because it will
+  // never be re-enabled.
+  if (attrib_index != 0 || feature_info_->gl_version_info().BehavesLikeGLES()) {
     if (attrib->enabled()) {
       glEnableVertexAttribArray(attrib_index);
     } else {
       glDisableVertexAttribArray(attrib_index);
     }
   }
 }
 
 bool GLES2DecoderImpl::SimulateFixedAttribs(
     const char* function_name,
     GLuint max_vertex_accessed, bool* simulated, GLsizei primcount) {
   DCHECK(simulated);
   *simulated = false;
-  if (gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2)
+  if (feature_info_->gl_version_info().BehavesLikeGLES())
     return true;
 
   if (!state_.vertex_attrib_manager->HaveFixedAttribs()) {
     return true;
   }
 
   LOCAL_PERFORMANCE_WARNING(
       "GL_FIXED attributes have a signficant performance penalty");
 
   // NOTE: we could be smart and try to check if a buffer is used
@@ skipping 7721 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