Revert of Make gl_clear_broken workaround support core profile and use it under AMD Linux Catalyst driver

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"
 
 #include "base/strings/string_split.h"
 #include "gpu/command_buffer/service/feature_info.h"
 #include "gpu/command_buffer/service/gl_utils.h"
 #include "ui/gl/gl_version_info.h"
@@ skipping 559 matching lines @@
 
 gpu::gles2::Logger* GLES2DecoderPassthroughImpl::GetLogger() {
   return &logger_;
 }
 
 const gpu::gles2::ContextState* GLES2DecoderPassthroughImpl::GetContextState() {
   return nullptr;
 }
 
 scoped_refptr<ShaderTranslatorInterface>
-GLES2DecoderPassthroughImpl::GetTranslator(GLenum type) const {
+GLES2DecoderPassthroughImpl::GetTranslator(GLenum type) {
   return nullptr;
 }
 
 void* GLES2DecoderPassthroughImpl::GetScratchMemory(size_t size) {
   if (scratch_memory_.size() < size) {
     scratch_memory_.resize(size, 0);
   }
   return scratch_memory_.data();
 }
 
@@ skipping 298 matching lines @@
   }, /* NOLINT */
 
 const GLES2DecoderPassthroughImpl::CommandInfo
     GLES2DecoderPassthroughImpl::command_info[] = {
         GLES2_COMMAND_LIST(GLES2_CMD_OP)};
 
 #undef GLES2_CMD_OP
 
 }  // namespace gles2
 }  // namespace gpu