Roll in ANGLE and turn on gl_Position init workaround.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index c8d9f9f8cf3367db4f872a3b8b8cde9f2ff6682b..38b7979b2ce059babac70f2b04d42c4fca53e47d 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -2512,9 +2512,8 @@ bool GLES2DecoderImpl::InitializeShaderTranslator() {
   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(