Update from https://crrev.com/306901

gpu/command_buffer/service/shader_translator.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/shader_translator.h"
 
 #include <string.h>
 #include <GLES2/gl2.h>
 #include <algorithm>
 
 #include "base/at_exit.h"
+#include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
+#include "ui/gl/gl_switches.h"
 
 namespace gpu {
 namespace gles2 {
 
 namespace {
 
 class ShaderTranslatorInitializer {
  public:
   ShaderTranslatorInitializer() {
     TRACE_EVENT0("gpu", "ShInitialize");
@@ skipping 100 matching lines @@
   driver_bug_workarounds_ = driver_bug_workarounds;
   return compiler_ != NULL;
 }
 
 int ShaderTranslator::GetCompileOptions() const {
   int compile_options =
       SH_OBJECT_CODE | SH_VARIABLES | SH_ENFORCE_PACKING_RESTRICTIONS |
       SH_LIMIT_EXPRESSION_COMPLEXITY | SH_LIMIT_CALL_STACK_DEPTH |
       SH_CLAMP_INDIRECT_ARRAY_BOUNDS;
 
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kGLShaderIntermOutput))
+    compile_options |= SH_INTERMEDIATE_TREE;
+
   compile_options |= driver_bug_workarounds_;
 
   return compile_options;
 }
 
 bool ShaderTranslator::Translate(const std::string& shader_source,
                                  std::string* info_log,
                                  std::string* translated_source,
                                  AttributeMap* attrib_map,
                                  UniformMap* uniform_map,
@@ skipping 53 matching lines @@
                     destruction_observers_,
                     OnDestruct(this));
 
   if (compiler_ != NULL)
     ShDestruct(compiler_);
 }
 
 }  // namespace gles2
 }  // namespace gpu