Revert of Update SplitString calls to new form

base/debug/proc_maps_linux.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 "base/debug/proc_maps_linux.h"
 
 #include <fcntl.h>
 
 #if defined(OS_LINUX) || defined(OS_ANDROID)
 #include <inttypes.h>
@@ skipping 78 matching lines @@
   return true;
 }
 
 bool ParseProcMaps(const std::string& input,
                    std::vector<MappedMemoryRegion>* regions_out) {
   CHECK(regions_out);
   std::vector<MappedMemoryRegion> regions;
 
   // This isn't async safe nor terribly efficient, but it doesn't need to be at
   // this point in time.
-  std::vector<std::string> lines = SplitString(
-      input, "\n", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+  std::vector<std::string> lines;
+  SplitString(input, '\n', &lines);
 
   for (size_t i = 0; i < lines.size(); ++i) {
     // Due to splitting on '\n' the last line should be empty.
     if (i == lines.size() - 1) {
       if (!lines[i].empty()) {
         DLOG(WARNING) << "Last line not empty";
         return false;
       }
       break;
     }
@@ skipping 47 matching lines @@
     regions.push_back(region);
     regions.back().path.assign(line + path_index);
   }
 
   regions_out->swap(regions);
   return true;
 }
 
 }  // namespace debug
 }  // namespace base