Use GLVersionInfo instead of gl::GetGLImplementation() to decide GL paths

gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc

 // Copyright (c) 2016 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_passthrough.h"
 
 namespace gpu {
 namespace gles2 {
 
 GLES2DecoderPassthroughImpl::GLES2DecoderPassthroughImpl(ContextGroup* group)
@@ skipping 156 matching lines @@
 }
 
 gl::GLContext* GLES2DecoderPassthroughImpl::GetGLContext() {
   return nullptr;
 }
 
 gpu::gles2::ContextGroup* GLES2DecoderPassthroughImpl::GetContextGroup() {
   return nullptr;
 }
 
+const FeatureInfo* GLES2DecoderPassthroughImpl::GetFeatureInfo() const {
+  return nullptr;
+}
+
 gpu::Capabilities GLES2DecoderPassthroughImpl::GetCapabilities() {
   DCHECK(initialized());
   Capabilities caps;
   return caps;
 }
 
 void GLES2DecoderPassthroughImpl::RestoreState(const ContextState* prev_state) {
 
 }
 
@@ skipping 191 matching lines @@
   }, /* NOLINT */
 
 const GLES2DecoderPassthroughImpl::CommandInfo
     GLES2DecoderPassthroughImpl::command_info[] = {
         GLES2_COMMAND_LIST(GLES2_CMD_OP)};
 
 #undef GLES2_CMD_OP
 
 }  // namespace gles2
 }  // namespace gpu