Do not use vector<scoped_ptr<>>.

win8/metro_driver/print_document_source.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 "stdafx.h"
 #include "win8/metro_driver/print_document_source.h"
 
 #include <windows.graphics.display.h>
 
 #include "base/logging.h"
@@ skipping 375 matching lines @@
   DCHECK(page_count > 0);
   {
     base::AutoLock lock(*parent_lock_);
     DCHECK(!page_count_ready_.IsSignaled());
     DCHECK(pages_.empty() && pages_ready_state_.empty());
 
     pages_.resize(page_count);
     pages_ready_state_.resize(page_count);
 
     for (size_t i = 0; i < page_count; ++i)
-      pages_ready_state_[i].reset(new base::ConditionVariable(parent_lock_));
+      pages_ready_state_[i] = new base::ConditionVariable(parent_lock_);
   }
   page_count_ready_.Signal();
 }
 
 void PrintDocumentSource::AddPage(size_t page_number,
                                   IStream* metafile_stream) {
   DCHECK(metafile_stream != NULL);
   base::AutoLock lock(*parent_lock_);
 
   DCHECK(page_count_ready_.IsSignaled());
@@ skipping 111 matching lines @@
 
   hr = factory1->CreateGdiMetafile(pages_[page_number].Get(), gdi_metafile);
   if (FAILED(hr)) {
     LOG(ERROR) << "Failed to CreateGdiMetafile " << std::hex << hr;
     return hr;
   }
   return hr;
 }
 
 }  // namespace metro_driver