Handle GLES2::ConsumeTextureCHROMIUM consuming the currently bound texture.

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 059ab5b2c2957868d2b7472fca7a6cf6507c0f98..54304d403f3e9116d070dabc2fe1664d6eb087cb 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -17283,6 +17283,9 @@ void GLES2DecoderImpl::DoConsumeTextureCHROMIUM(GLenum target,
     return;
   }
 
+  if (texture_ref->texture() == texture)
+    return;
+
   DeleteTexturesHelper(1, &client_id);
   texture_ref = texture_manager()->Consume(client_id, texture);
   glBindTexture(target, texture_ref->service_id());