Move platform_thread to base/threading and put in the base namespace. I left ...

net/proxy/multi_threaded_proxy_resolver_unittest.cc

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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/proxy/multi_threaded_proxy_resolver.h"
 
 #include "base/stl_util-inl.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
+#include "base/threading/platform_thread.h"
 #include "base/utf_string_conversions.h"
 #include "base/waitable_event.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log.h"
 #include "net/base/net_log_unittest.h"
 #include "net/base/test_completion_callback.h"
 #include "net/proxy/proxy_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 13 matching lines @@
         purge_count_(0),
         resolve_latency_ms_(0) {}
 
   // ProxyResolver implementation:
   virtual int GetProxyForURL(const GURL& query_url,
                              ProxyInfo* results,
                              CompletionCallback* callback,
                              RequestHandle* request,
                              const BoundNetLog& net_log) {
     if (resolve_latency_ms_)
-      PlatformThread::Sleep(resolve_latency_ms_);
+      base::PlatformThread::Sleep(resolve_latency_ms_);
 
     CheckIsOnWorkerThread();
 
     EXPECT_TRUE(callback == NULL);
     EXPECT_TRUE(request == NULL);
 
     // Write something into |net_log| (doesn't really have any meaning.)
     net_log.BeginEvent(NetLog::TYPE_PAC_JAVASCRIPT_DNS_RESOLVE, NULL);
 
     results->UseNamedProxy(query_url.host());
@@ skipping 712 matching lines @@
   // All in all, the first thread should have seen just 1 request. And the
   // second thread 3 requests.
   ASSERT_EQ(2u, factory->resolvers().size());
   EXPECT_EQ(1, factory->resolvers()[0]->request_count());
   EXPECT_EQ(3, factory->resolvers()[1]->request_count());
 }
 
 }  // namespace
 
 }  // namespace net