Remove implicit conversions from scoped_refptr to T* in gpu/

gpu/command_buffer/service/async_pixel_transfer_delegate.cc

 // Copyright (c) 2013 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/async_pixel_transfer_delegate.h"
 
 namespace gpu {
 
 AsyncMemoryParams::AsyncMemoryParams(scoped_refptr<Buffer> buffer,
                     uint32 data_offset,
                     uint32 data_size)
     : buffer_(buffer), data_offset_(data_offset), data_size_(data_size) {
-  DCHECK(buffer_);
+  DCHECK(buffer_.get());
   DCHECK(buffer_->memory());
 }
 
 AsyncMemoryParams::~AsyncMemoryParams() {
 }
 
 AsyncPixelTransferUploadStats::AsyncPixelTransferUploadStats()
     : texture_upload_count_(0) {}
 
 AsyncPixelTransferUploadStats::~AsyncPixelTransferUploadStats() {}
@@ skipping 10 matching lines @@
   if (total_texture_upload_time)
     *total_texture_upload_time = total_texture_upload_time_;
   return texture_upload_count_;
 }
 
 AsyncPixelTransferDelegate::AsyncPixelTransferDelegate() {}
 
 AsyncPixelTransferDelegate::~AsyncPixelTransferDelegate() {}
 
 }  // namespace gpu