Update the tcmalloc chromium branch to r144 (gperftools 2.0), and merge chromium-specific changes.

content/browser/zygote_host_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 "content/browser/zygote_host_linux.h"
 
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ skipping 15 matching lines @@
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "content/browser/renderer_host/render_sandbox_host_linux.h"
 #include "content/common/unix_domain_socket_posix.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
 #include "sandbox/linux/suid/suid_unsafe_environment_variables.h"
 
 #if defined(USE_TCMALLOC)
-#include "third_party/tcmalloc/chromium/src/google/heap-profiler.h"
+#include "third_party/tcmalloc/chromium/src/gperftools/heap-profiler.h"
 #endif
 
 static void SaveSUIDUnsafeEnvironmentVariables() {
   // The ELF loader will clear many environment variables so we save them to
   // different names here so that the SUID sandbox can resolve them for the
   // renderer.
 
   for (unsigned i = 0; kSUIDUnsafeEnvironmentVariables[i]; ++i) {
     const char* const envvar = kSUIDUnsafeEnvironmentVariables[i];
     char* const saved_envvar = SandboxSavedEnvironmentVariable(envvar);
@@ skipping 389 matching lines @@
       !read_pickle.ReadInt(&iter, &tmp_exit_code)) {
     LOG(WARNING) << "Error parsing GetTerminationStatus response from zygote.";
     return base::TERMINATION_STATUS_NORMAL_TERMINATION;
   }
 
   if (exit_code)
     *exit_code = tmp_exit_code;
 
   return static_cast<base::TerminationStatus>(status);
 }