[Command buffer] Enable primitive restart for WebGL 2

gpu/command_buffer/service/context_state.cc

Index: gpu/command_buffer/service/context_state.cc
diff --git a/gpu/command_buffer/service/context_state.cc b/gpu/command_buffer/service/context_state.cc
index 85cde3bfab3297f1782f67c74860de1c61d7c6cf..4a2a3ee505183aefdaad2669ad4af7b7bbc03580 100644
--- a/gpu/command_buffer/service/context_state.cc
+++ b/gpu/command_buffer/service/context_state.cc
@@ -436,7 +436,8 @@ ErrorState* ContextState::GetErrorState() {
 void ContextState::EnableDisable(GLenum pname, bool enable) const {
   if (pname == GL_PRIMITIVE_RESTART_FIXED_INDEX) {
     if (feature_info_->feature_flags().emulate_primitive_restart_fixed_index)

[Zhenyao Mo, 2016/03/29 16:30:15]

nit: {} for the body when there are multiple lines

[Ken Russell (switch to Gerrit), 2016/03/30 01:04:59]

Agree.

[yunchao, 2016/03/30 08:25:22]

Done.

-      pname = GL_PRIMITIVE_RESTART;
+      // GLES2DecoderImpl::DoDrawElements can handle this situation
+      return;
   }
   if (enable) {
     glEnable(pname);