Revert of Convert //net and //chromecast to std::unordered_*

net/disk_cache/simple/simple_backend_impl.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 "net/disk_cache/simple/simple_backend_impl.h"
 
 #include <algorithm>
 #include <cstdlib>
 #include <functional>
 
@@ skipping 271 matching lines @@
 }
 
 void SimpleBackendImpl::OnDoomStart(uint64_t entry_hash) {
   DCHECK_EQ(0u, entries_pending_doom_.count(entry_hash));
   entries_pending_doom_.insert(
       std::make_pair(entry_hash, std::vector<Closure>()));
 }
 
 void SimpleBackendImpl::OnDoomComplete(uint64_t entry_hash) {
   DCHECK_EQ(1u, entries_pending_doom_.count(entry_hash));
-  std::unordered_map<uint64_t, std::vector<Closure>>::iterator it =
+  base::hash_map<uint64_t, std::vector<Closure>>::iterator it =
       entries_pending_doom_.find(entry_hash);
   std::vector<Closure> to_run_closures;
   to_run_closures.swap(it->second);
   entries_pending_doom_.erase(it);
 
   for (auto& closure : to_run_closures)
     closure.Run();
 }
 
 void SimpleBackendImpl::DoomEntries(std::vector<uint64_t>* entry_hashes,
@@ skipping 68 matching lines @@
   return index_->GetEntryCount();
 }
 
 int SimpleBackendImpl::OpenEntry(const std::string& key,
                                  Entry** entry,
                                  const CompletionCallback& callback) {
   const uint64_t entry_hash = simple_util::GetEntryHashKey(key);
 
   // TODO(gavinp): Factor out this (not quite completely) repetitive code
   // block from OpenEntry/CreateEntry/DoomEntry.
-  std::unordered_map<uint64_t, std::vector<Closure>>::iterator it =
+  base::hash_map<uint64_t, std::vector<Closure>>::iterator it =
       entries_pending_doom_.find(entry_hash);
   if (it != entries_pending_doom_.end()) {
     Callback<int(const net::CompletionCallback&)> operation =
         base::Bind(&SimpleBackendImpl::OpenEntry,
                    base::Unretained(this), key, entry);
     it->second.push_back(base::Bind(&RunOperationAndCallback,
                                     operation, callback));
     return net::ERR_IO_PENDING;
   }
   scoped_refptr<SimpleEntryImpl> simple_entry =
       CreateOrFindActiveEntry(entry_hash, key);
   CompletionCallback backend_callback =
       base::Bind(&SimpleBackendImpl::OnEntryOpenedFromKey,
                  AsWeakPtr(),
                  key,
                  entry,
                  simple_entry,
                  callback);
   return simple_entry->OpenEntry(entry, backend_callback);
 }
 
 int SimpleBackendImpl::CreateEntry(const std::string& key,
                                    Entry** entry,
                                    const CompletionCallback& callback) {
   DCHECK_LT(0u, key.size());
   const uint64_t entry_hash = simple_util::GetEntryHashKey(key);
 
-  std::unordered_map<uint64_t, std::vector<Closure>>::iterator it =
+  base::hash_map<uint64_t, std::vector<Closure>>::iterator it =
       entries_pending_doom_.find(entry_hash);
   if (it != entries_pending_doom_.end()) {
     Callback<int(const net::CompletionCallback&)> operation =
         base::Bind(&SimpleBackendImpl::CreateEntry,
                    base::Unretained(this), key, entry);
     it->second.push_back(base::Bind(&RunOperationAndCallback,
                                     operation, callback));
     return net::ERR_IO_PENDING;
   }
   scoped_refptr<SimpleEntryImpl> simple_entry =
       CreateOrFindActiveEntry(entry_hash, key);
   return simple_entry->CreateEntry(entry, callback);
 }
 
 int SimpleBackendImpl::DoomEntry(const std::string& key,
                                  const net::CompletionCallback& callback) {
   const uint64_t entry_hash = simple_util::GetEntryHashKey(key);
 
-  std::unordered_map<uint64_t, std::vector<Closure>>::iterator it =
+  base::hash_map<uint64_t, std::vector<Closure>>::iterator it =
       entries_pending_doom_.find(entry_hash);
   if (it != entries_pending_doom_.end()) {
     Callback<int(const net::CompletionCallback&)> operation =
         base::Bind(&SimpleBackendImpl::DoomEntry, base::Unretained(this), key);
     it->second.push_back(base::Bind(&RunOperationAndCallback,
                                     operation, callback));
     return net::ERR_IO_PENDING;
   }
   scoped_refptr<SimpleEntryImpl> simple_entry =
       CreateOrFindActiveEntry(entry_hash, key);
@@ skipping 185 matching lines @@
     it->second->Doom();
     DCHECK_EQ(0U, active_entries_.count(entry_hash));
     return CreateOrFindActiveEntry(entry_hash, key);
   }
   return make_scoped_refptr(it->second);
 }
 
 int SimpleBackendImpl::OpenEntryFromHash(uint64_t entry_hash,
                                          Entry** entry,
                                          const CompletionCallback& callback) {
-  std::unordered_map<uint64_t, std::vector<Closure>>::iterator it =
+  base::hash_map<uint64_t, std::vector<Closure>>::iterator it =
       entries_pending_doom_.find(entry_hash);
   if (it != entries_pending_doom_.end()) {
     Callback<int(const net::CompletionCallback&)> operation =
         base::Bind(&SimpleBackendImpl::OpenEntryFromHash,
                    base::Unretained(this), entry_hash, entry);
     it->second.push_back(base::Bind(&RunOperationAndCallback,
                                     operation, callback));
     return net::ERR_IO_PENDING;
   }
 
   EntryMap::iterator has_active = active_entries_.find(entry_hash);
   if (has_active != active_entries_.end()) {
     return OpenEntry(has_active->second->key(), entry, callback);
   }
 
   scoped_refptr<SimpleEntryImpl> simple_entry = new SimpleEntryImpl(
       cache_type_, path_, entry_hash, entry_operations_mode_, this, net_log_);
   CompletionCallback backend_callback =
       base::Bind(&SimpleBackendImpl::OnEntryOpenedFromHash,
                  AsWeakPtr(), entry_hash, entry, simple_entry, callback);
   return simple_entry->OpenEntry(entry, backend_callback);
 }
 
 int SimpleBackendImpl::DoomEntryFromHash(uint64_t entry_hash,
                                          const CompletionCallback& callback) {
   Entry** entry = new Entry*();
   scoped_ptr<Entry*> scoped_entry(entry);
 
-  std::unordered_map<uint64_t, std::vector<Closure>>::iterator pending_it =
+  base::hash_map<uint64_t, std::vector<Closure>>::iterator pending_it =
       entries_pending_doom_.find(entry_hash);
   if (pending_it != entries_pending_doom_.end()) {
     Callback<int(const net::CompletionCallback&)> operation =
         base::Bind(&SimpleBackendImpl::DoomEntryFromHash,
                    base::Unretained(this), entry_hash);
     pending_it->second.push_back(base::Bind(&RunOperationAndCallback,
                                     operation, callback));
     return net::ERR_IO_PENDING;
   }
 
@@ skipping 72 matching lines @@
 }
 
 // static
 void SimpleBackendImpl::FlushWorkerPoolForTesting() {
   // We only need to do this if we there is an active task runner.
   if (base::ThreadTaskRunnerHandle::IsSet())
     g_sequenced_worker_pool.Get().FlushForTesting();
 }
 
 }  // namespace disk_cache