Move ReadFileToString to the base namespace.

base/sys_info_linux.cc

 // Copyright (c) 2011 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 <limits>
 
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 24 matching lines @@
 int64 SysInfo::AmountOfAvailablePhysicalMemory() {
   return AmountOfMemory(_SC_AVPHYS_PAGES);
 }
 
 // static
 size_t SysInfo::MaxSharedMemorySize() {
   static int64 limit;
   static bool limit_valid = false;
   if (!limit_valid) {
     std::string contents;
-    file_util::ReadFileToString(FilePath("/proc/sys/kernel/shmmax"), &contents);
+    ReadFileToString(FilePath("/proc/sys/kernel/shmmax"), &contents);
     DCHECK(!contents.empty());
     if (!contents.empty() && contents[contents.length() - 1] == '\n') {
       contents.erase(contents.length() - 1);
     }
     if (base::StringToInt64(contents, &limit)) {
       DCHECK(limit >= 0);
       DCHECK(static_cast<uint64>(limit) <= std::numeric_limits<size_t>::max());
       limit_valid = true;
     } else {
       NOTREACHED();
       return 0;
     }
   }
   return static_cast<size_t>(limit);
 }
 
 // static
 std::string SysInfo::CPUModelName() {
 #if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)
   const char kCpuModelPrefix[] = "Hardware";
 #else
   const char kCpuModelPrefix[] = "model name";
 #endif
   std::string contents;
-  file_util::ReadFileToString(FilePath("/proc/cpuinfo"), &contents);
+  ReadFileToString(FilePath("/proc/cpuinfo"), &contents);
   DCHECK(!contents.empty());
   if (!contents.empty()) {
     std::istringstream iss(contents);
     std::string line;
     while (std::getline(iss, line)) {
       if (line.compare(0, strlen(kCpuModelPrefix), kCpuModelPrefix) == 0) {
         size_t pos = line.find(": ");
         return line.substr(pos + 2);
       }
     }
   }
   return std::string();
 }
 
 }  // namespace base