Use a direct include of strings headers in base/.

base/sys_info_android.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 "base/sys_info.h"
 
 #include <sys/system_properties.h>
 
 #include "base/logging.h"
-#include "base/stringprintf.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
+#include "base/strings/stringprintf.h"
 
 namespace {
 
 // Default version of Android to fall back to when actual version numbers
 // cannot be acquired.
 // TODO(dfalcantara): Keep this reasonably up to date with the latest publicly
 //                    available version of Android.
 static const int kDefaultAndroidMajorVersion = 4;
 static const int kDefaultAndroidMinorVersion = 0;
 static const int kDefaultAndroidBugfixVersion = 3;
@@ skipping 135 matching lines @@
   return heap_size;
 }
 
 int SysInfo::DalvikHeapGrowthLimitMB() {
   static int heap_growth_limit = GetDalvikHeapGrowthLimitMB();
   return heap_growth_limit;
 }
 
 
 }  // namespace base