HW draw workarounds

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 d2d7c110676aae882cabce1baae075cb9e28bddd..634af173e14e70dd46608c4a90971880b983ee55 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -2840,8 +2840,10 @@ bool GLES2DecoderImpl::MakeCurrent() {
     glFlush();
 
   // Rebind the FBO if it was unbound by the context.
+  /*
   if (workarounds().unbind_fbo_on_context_switch)
     RestoreFramebufferBindings();

[no sievers, 2013/05/16 00:09:55]

This should only be set on Vivante gpus. Why did you need this? I'm just asking
in case the workaround introduced a bug (and is not limited as it should be
somehow) :)

[joth, 2013/05/16 00:20:44]

Seems it's being set on Imagination gpus too?

gpu/command_buffer/service/feature_info.cc
    if (is_vivante || is_imagination) {
      workarounds_.unbind_fbo_on_context_switch = true;
    }

*IIRC* without this commented out, you'd get one frame but then would just
render blank (even with virtual context)

+  */
 
   return true;
 }