Use a direct include of strings headers in remoting/.

remoting/base/breakpad_win_unittest.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 <stdio.h>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/environment.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "breakpad/src/client/windows/crash_generation/client_info.h"
 #include "breakpad/src/client/windows/crash_generation/crash_generation_server.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 // The name of the environment variable used to pass the crash server pipe name
 // to the crashing child process.
@@ skipping 136 matching lines @@
 TEST_F(BreakpadWinDeathTest, TestDebugbreak) {
   if (callbacks_.get()) {
     EXPECT_CALL(*callbacks_, OnClientDumpRequested());
   }
 
   // See if __debugbreak() is intercepted.
   ASSERT_DEATH(__debugbreak(), "");
 }
 
 }  // namespace remoting