Do not use vector<scoped_ptr<>>.

win8/metro_driver/print_document_source.cc

Index: win8/metro_driver/print_document_source.cc
diff --git a/win8/metro_driver/print_document_source.cc b/win8/metro_driver/print_document_source.cc
index 34ce2279dfff838ff20faea05995dd240cedac34..9d2a0c446f4706187136ed4a410ad1dd41c5050f 100644
--- a/win8/metro_driver/print_document_source.cc
+++ b/win8/metro_driver/print_document_source.cc
@@ -393,7 +393,7 @@ void PrintDocumentSource::SetPageCount(size_t 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();
 }