Attaching an image to many color attachment points is unsupported

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 670782ecb6243bb97252cfe4918b8eb3cc585274..379dcd54eefedb1704dce5a02323387f536ab501 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -7146,6 +7146,11 @@ GLenum GLES2DecoderImpl::DoCheckFramebufferStatus(GLenum target) {
   if (completeness != GL_FRAMEBUFFER_COMPLETE) {
     return completeness;
   }
+
+  if (framebuffer->HasDuplicateColorAttachments()) {

[Zhenyao Mo, 2016/07/19 20:39:15]

This should go inside Framebuffer::IsPossiblyComplete().

[qiankun, 2016/07/20 08:53:33]

Done.

+    return GL_FRAMEBUFFER_UNSUPPORTED;
+  }
+
   return framebuffer->GetStatus(texture_manager(), target);
 }