mac: Delete more 10.5-only code

chrome/browser/process_info_snapshot_mac.cc

Index: chrome/browser/process_info_snapshot_mac.cc
diff --git a/chrome/browser/process_info_snapshot_mac.cc b/chrome/browser/process_info_snapshot_mac.cc
index 74d93bf6ac039c5917fe73804c0f20432e27ea38..6ee0e05d3a3f7affe0e94ddf2eb4009d0eab4e51 100644
--- a/chrome/browser/process_info_snapshot_mac.cc
+++ b/chrome/browser/process_info_snapshot_mac.cc
@@ -10,7 +10,6 @@
 
 #include "base/command_line.h"
 #include "base/logging.h"
-#include "base/mac/mac_util.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/threading/thread.h"
@@ -268,75 +267,6 @@ static bool GetProcessMemoryInfoUsingTop(
   return true;
 }
 
-static bool GetProcessMemoryInfoUsingTop_10_5(
-    std::map<int,ProcessInfoSnapshot::ProcInfoEntry>& proc_info_entries) {
-  const FilePath kProgram("/usr/bin/top");
-  CommandLine command_line(kProgram);
-
-  // -p tells top to print just the given fields as ordered.
-  command_line.AppendArg("-p");
-  command_line.AppendArg(
-      "^aaaaaaaaaaaaaaaaaaaa "  // Process ID (PID)
-      "^jjjjjjjjjjjjjjjjjjjj "  // Resident memory (RSIZE)
-      "^iiiiiiiiiiiiiiiiiiii "  // Resident shared memory (RSHRD)
-      "^hhhhhhhhhhhhhhhhhhhh "  // Resident private memory (RPRVT)
-      "^llllllllllllllllllll"); // Total virtual memory (VSIZE)
-  // Run top in logging (non-interactive) mode.
-  command_line.AppendArg("-l");
-  command_line.AppendArg("1");
-  // Set the delay between updates to 0.
-  command_line.AppendArg("-s");
-  command_line.AppendArg("0");
-
-  std::string output;
-  // Limit output read to a megabyte for safety.
-  if (!base::GetAppOutputRestricted(command_line, &output, 1024 * 1024)) {
-    LOG(ERROR) << "Failure running " << kProgram.value() << " to acquire data.";
-    return false;
-  }
-
-  // Process lines until done. Lines should look something like this:
-  // PID      RSIZE     RSHRD     RPRVT     VSIZE
-  // 16943    815104    262144    290816    18489344
-  // 16922    954368    720896    278528    18976768
-  std::istringstream top_in(output, std::istringstream::in);
-  std::string line;
-  while (std::getline(top_in, line)) {
-    std::istringstream in(line, std::istringstream::in);
-
-    // Try to read the PID.
-    pid_t pid;
-    in >> pid;
-    if (in.fail())
-      continue;
-
-    // Make sure that caller is interested in this process.
-    if (proc_info_entries.find(pid) == proc_info_entries.end())
-      continue;
-
-    uint64_t values[4];
-    size_t i;
-    for (i = 0; i < arraysize(values); i++) {
-      in >> values[i];
-      if (in.fail())
-        break;
-    }
-    if (i != arraysize(values))
-      continue;
-
-    ProcessInfoSnapshot::ProcInfoEntry proc_info = proc_info_entries[pid];
-    proc_info.rss = values[0];
-    proc_info.rshrd = values[1];
-    proc_info.rprvt = values[2];
-    proc_info.vsize = values[3];
-    // Record the process information.
-    proc_info_entries[proc_info.pid] = proc_info;
-  }
-
-  return true;
-}
-
-
 bool ProcessInfoSnapshot::Sample(std::vector<base::ProcessId> pid_list) {
   Reset();
 
@@ -379,11 +309,7 @@ bool ProcessInfoSnapshot::Sample(std::vector<base::ProcessId> pid_list) {
   }
 
   // Get memory information using top.
-  bool memory_info_success = false;
-  if (base::mac::IsOSLeopardOrEarlier())
-    memory_info_success = GetProcessMemoryInfoUsingTop_10_5(proc_info_entries_);
-  else
-    memory_info_success = GetProcessMemoryInfoUsingTop(proc_info_entries_);
+  bool memory_info_success = GetProcessMemoryInfoUsingTop(proc_info_entries_);
 
   // If top didn't work then fall back to ps.
   if (!memory_info_success) {