Always use Desktop GL 4.1 or less BindBufferRange behavior.

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 1914c68d60f10c9c06c2f3734d63862c63340ff0..3c1d9a8aa344a918e94a1924134d6fc60796dccd 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -3103,7 +3103,10 @@ bool GLES2DecoderImpl::Initialize(
     }
   }
 
-  bool needs_emulation = gl_version_info().IsLowerThanGL(4, 2);
+  // |needs_emulation| is set to true on Desktop GL 4.1 or lower.
+  // For now we set it everywhere to be on the safe side in case drivers
+  // do not handle out-of-bounds visit securely.

[Ken Russell (switch to Gerrit), 2016/10/24 21:39:24]

How about "visit" -> "accesses"?

[Zhenyao Mo, 2016/10/24 21:47:30]

Done.

+  bool needs_emulation = true;
   transform_feedback_manager_.reset(new TransformFeedbackManager(
       group_->max_transform_feedback_separate_attribs(), needs_emulation));