Roll in ANGLE and turn on gl_Position init workaround.

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 <stdio.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 2494 matching lines @@
     resources.HashFunction = &CityHash64;
 #endif
   else
     resources.HashFunction = NULL;
   ShaderTranslatorInterface::GlslImplementationType implementation_type =
       gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2 ?
           ShaderTranslatorInterface::kGlslES : ShaderTranslatorInterface::kGlsl;
   int driver_bug_workarounds = 0;
   if (workarounds().needs_glsl_built_in_function_emulation)
     driver_bug_workarounds |= SH_EMULATE_BUILT_IN_FUNCTIONS;
-  // TODO(zmo): Uncomment the below two lines when ANGLE CL is rolled in.
-  // if (workarounds().init_gl_position_in_vertex_shader)
-  //   driver_bug_workarounds |= SH_INIT_GL_POSITION;
+  if (workarounds().init_gl_position_in_vertex_shader)
+    driver_bug_workarounds |= SH_INIT_GL_POSITION;
 
   ShaderTranslatorCache* cache = ShaderTranslatorCache::GetInstance();
   vertex_translator_ = cache->GetTranslator(
       SH_VERTEX_SHADER, shader_spec, &resources,
       implementation_type,
       static_cast<ShCompileOptions>(driver_bug_workarounds));
   if (!vertex_translator_.get()) {
     LOG(ERROR) << "Could not initialize vertex shader translator.";
     Destroy(true);
     return false;
@@ skipping 7740 matching lines @@
   return error::kNoError;
 }
 
 // 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 "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu