Update to Chromium //base at Chromium commit 01cb97b2e09618bbc3a60c7348f0a844eea20547.

allocator/BUILD.gn

 # 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.
 
 import("//build/config/allocator.gni")
 
+declare_args() {
+  # Provide a way to force disable debugallocation in Debug builds,
+  # e.g. for profiling (it's more rare to profile Debug builds,
+  # but people sometimes need to do that).
+  enable_debugallocation = is_debug
+}
+
 # Only executables and not libraries should depend on the allocator target;
 # only the application (the final executable) knows what allocator makes sense.
 # This "allocator" meta-target will forward to the default allocator according
 # to the build settings.
 group("allocator") {
   public_deps = []
   if (use_allocator == "tcmalloc") {
     public_deps += [ ":tcmalloc" ]
   }
 
   # This condition expresses the win_use_allocator_shim in the GYP build.
   if (is_win && !is_component_build) {
     public_deps += [ ":allocator_shim" ]
   }
 }
 
 # This config defines ALLOCATOR_SHIM in the same conditions that the allocator
 # shim will be used by the allocator target.
 #
 # TODO(brettw) this is only used in one place and is kind of mess, because it
 # assumes that the library using it will eventually be linked with
 # //base/allocator in the default way. Clean this up and delete this.
 config("allocator_shim_define") {
   if (is_win && !is_component_build) {
     defines = [ "ALLOCATOR_SHIM" ]
   }
 }
 
+config("tcmalloc_flags") {
+  if (enable_debugallocation) {
+    defines = [
+      # Use debugallocation for Debug builds to catch problems early
+      # and cleanly, http://crbug.com/30715 .
+      "TCMALLOC_FOR_DEBUGALLOCATION",
+    ]
+  }
+}
+
 # This config and libc modification are only used on Windows.
 if (is_win) {
   import("//build/config/win/visual_studio_version.gni")
 
   config("nocmt") {
     ldflags = [
       "/NODEFAULTLIB:libcmt",
       "/NODEFAULTLIB:libcmtd",
     ]
     libs = [ rebase_path("$target_gen_dir/allocator/libcmt.lib") ]
@@ skipping 143 matching lines @@
     # Disable the heap checker in tcmalloc.
     defines = [ "NO_HEAP_CHECK" ]
 
     include_dirs = [
       ".",
       "$tcmalloc_dir/src/base",
       "$tcmalloc_dir/src",
     ]
 
     configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":tcmalloc_flags",
+    ]
 
     deps = []
 
     if (is_win) {
       sources -= [
         "$tcmalloc_dir/src/base/elf_mem_image.cc",
         "$tcmalloc_dir/src/base/elf_mem_image.h",
         "$tcmalloc_dir/src/base/linuxthreads.cc",
         "$tcmalloc_dir/src/base/linuxthreads.h",
         "$tcmalloc_dir/src/base/vdso_support.cc",
@@ skipping 74 matching lines @@
   visibility = [ "//base/*" ]
   sources = [
     "allocator_extension_thunks.cc",
     "allocator_extension_thunks.h",
   ]
   if (is_android && !is_debug) {
     configs -= [ "//build/config/compiler:optimize" ]
     configs += [ "//build/config/compiler:optimize_max" ]
   }
 }