gpu: Reuse transfer buffers more aggresively

gpu/command_buffer/service/common_decoder.cc

 // Copyright (c) 2012 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 "gpu/command_buffer/service/common_decoder.h"
 #include "gpu/command_buffer/service/cmd_buffer_engine.h"
 
 namespace gpu {
 
 CommonDecoder::Bucket::Bucket() : size_(0) {}
@@ skipping 158 matching lines @@
   return error::kNoError;
 }
 
 error::Error CommonDecoder::HandleSetToken(
     uint32 immediate_data_size,
     const cmd::SetToken& args) {
   engine_->set_token(args.token);
   return error::kNoError;
 }
 
+error::Error CommonDecoder::HandleSetAsyncToken(
+    uint32 immediate_data_size,
+    const cmd::SetAsyncToken& args) {
+  OnSetAsyncToken(args.async_token);
+  return error::kNoError;
+}
+
 error::Error CommonDecoder::HandleSetBucketSize(
     uint32 immediate_data_size,
     const cmd::SetBucketSize& args) {
   uint32 bucket_id = args.bucket_id;
   uint32 size = args.size;
 
   Bucket* bucket = CreateBucket(bucket_id);
   bucket->SetSize(size);
   return error::kNoError;
 }
@@ skipping 94 matching lines @@
   }
   const void* src = bucket->GetData(offset, size);
   if (!src) {
       return error::kInvalidArguments;
   }
   memcpy(data, src, size);
   return error::kNoError;
 }
 
 }  // namespace gpu