Call xglMakeCurrent for each command buffer to allow for multiple GL contexts...

gpu/command_buffer/service/gpu_processor.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_loop.h"
 #include "gpu/command_buffer/service/gpu_processor.h"
 
 using ::base::SharedMemory;
 
 namespace gpu {
@@ skipping 17 matching lines @@
   parser_.reset(parser);
 }
 
 GPUProcessor::~GPUProcessor() {
 }
 
 void GPUProcessor::ProcessCommands() {
   if (command_buffer_->GetErrorStatus())
     return;
 
+  if (decoder_.get()) {
+    // TODO(apatrick): need to do more than this on failure.
+    if (!decoder_->MakeCurrent())
+      return;
+  }
+
   parser_->set_put(command_buffer_->GetPutOffset());
 
   int commands_processed = 0;
   while (commands_processed < commands_per_update_ && !parser_->IsEmpty()) {
     parse_error::ParseError parse_error = parser_->ProcessCommand();
     switch (parse_error) {
       case parse_error::kParseUnknownCommand:
       case parse_error::kParseInvalidArguments:
         command_buffer_->SetParseError(parse_error);
         break;
@@ skipping 20 matching lines @@
 
 Buffer GPUProcessor::GetSharedMemoryBuffer(int32 shm_id) {
   return command_buffer_->GetTransferBuffer(shm_id);
 }
 
 void GPUProcessor::set_token(int32 token) {
   command_buffer_->SetToken(token);
 }
 
 }  // namespace gpu