Update from https://crrev.com/306655

base/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")
 
 # 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") {
   if (use_allocator == "tcmalloc") {
-    deps = [ ":tcmalloc" ]
+    deps = [
+      ":tcmalloc",
+    ]
   }
 }
 
 # 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",
@@ skipping 23 matching lines @@
       # and checked in.
       "$tcmalloc_dir/src/config.h",
       "$tcmalloc_dir/src/config_android.h",
       "$tcmalloc_dir/src/config_linux.h",
       "$tcmalloc_dir/src/config_win.h",
 
       # tcmalloc native and forked files.
       "$tcmalloc_dir/src/base/abort.cc",
       "$tcmalloc_dir/src/base/abort.h",
       "$tcmalloc_dir/src/base/arm_instruction_set_select.h",
+
       # We don't list dynamic_annotations.c since its copy is already
       # present in the dynamic_annotations target.
       "$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/logging.cc",
       "$tcmalloc_dir/src/base/logging.h",
       "$tcmalloc_dir/src/base/low_level_alloc.cc",
       "$tcmalloc_dir/src/base/low_level_alloc.h",
       "$tcmalloc_dir/src/base/spinlock.cc",
       "$tcmalloc_dir/src/base/spinlock.h",
       "$tcmalloc_dir/src/base/spinlock_internal.cc",
       "$tcmalloc_dir/src/base/spinlock_internal.h",
       "$tcmalloc_dir/src/base/synchronization_profiling.h",
       "$tcmalloc_dir/src/base/sysinfo.cc",
       "$tcmalloc_dir/src/base/sysinfo.h",
       "$tcmalloc_dir/src/base/thread_lister.c",
       "$tcmalloc_dir/src/base/thread_lister.h",
       "$tcmalloc_dir/src/base/vdso_support.cc",
       "$tcmalloc_dir/src/base/vdso_support.h",
       "$tcmalloc_dir/src/central_freelist.cc",
       "$tcmalloc_dir/src/central_freelist.h",
       "$tcmalloc_dir/src/common.cc",
       "$tcmalloc_dir/src/common.h",
+
       # #included by debugallocation_shim.cc
       #"$tcmalloc_dir/src/debugallocation.cc",
       "$tcmalloc_dir/src/deep-heap-profile.cc",
       "$tcmalloc_dir/src/deep-heap-profile.h",
       "$tcmalloc_dir/src/free_list.cc",
       "$tcmalloc_dir/src/free_list.h",
       "$tcmalloc_dir/src/heap-profile-table.cc",
       "$tcmalloc_dir/src/heap-profile-table.h",
       "$tcmalloc_dir/src/heap-profiler.cc",
       "$tcmalloc_dir/src/internal_logging.cc",
@@ skipping 21 matching lines @@
       "$tcmalloc_dir/src/span.h",
       "$tcmalloc_dir/src/stack_trace_table.cc",
       "$tcmalloc_dir/src/stack_trace_table.h",
       "$tcmalloc_dir/src/stacktrace.cc",
       "$tcmalloc_dir/src/static_vars.cc",
       "$tcmalloc_dir/src/static_vars.h",
       "$tcmalloc_dir/src/symbolize.cc",
       "$tcmalloc_dir/src/symbolize.h",
       "$tcmalloc_dir/src/system-alloc.cc",
       "$tcmalloc_dir/src/system-alloc.h",
+
       # #included by debugallocation_shim.cc
       #"$tcmalloc_dir/src/tcmalloc.cc",
       "$tcmalloc_dir/src/thread_cache.cc",
       "$tcmalloc_dir/src/thread_cache.h",
       "$tcmalloc_dir/src/windows/port.cc",
       "$tcmalloc_dir/src/windows/port.h",
-
       "allocator_shim.cc",
       "allocator_shim.h",
       "debugallocation_shim.cc",
 
       # These are both #included by allocator_shim for maximal linking.
       #"generic_allocators.cc",
       #"win_allocator.cc",
     ]
 
     # Disable the heap checker in tcmalloc.
@@ skipping 39 matching lines @@
       defines += [ "PERFTOOLS_DLL_DECL=" ]
 
       configs -= [
         # Tcmalloc defines this itself, and we don't want duplicate definition
         # warnings.
         "//build/config/win:nominmax",
       ]
 
       public_configs = [ ":nocmt" ]
 
-      deps += [
-        ":prep_libc",
-      ]
+      deps += [ ":prep_libc" ]
     }
 
     if (is_linux || is_android) {
       sources -= [
         "$tcmalloc_dir/src/system-alloc.h",
         "$tcmalloc_dir/src/windows/port.cc",
         "$tcmalloc_dir/src/windows/port.h",
 
         # TODO(willchan): Support allocator shim later on.
         "allocator_shim.cc",
       ]
 
       # We enable all warnings by default, but upstream disables a few.
       # Keep "-Wno-*" flags in sync with upstream by comparing against:
       # http://code.google.com/p/google-perftools/source/browse/trunk/Makefile.am
       cflags = [
         "-Wno-sign-compare",
         "-Wno-unused-result",
       ]
 
       configs -= [ "//build/config/gcc:symbol_visibility_hidden" ]
 
       ldflags = [
         # Don't let linker rip this symbol out, otherwise the heap&cpu
         # profilers will not initialize properly on startup.
         "-Wl,-uIsHeapProfilerRunning,-uProfilerStart",
+
         # Do the same for heap leak checker.
         "-Wl,-u_Z21InitialMallocHook_NewPKvj,-u_Z22InitialMallocHook_MMapPKvS0_jiiix,-u_Z22InitialMallocHook_SbrkPKvi",
         "-Wl,-u_Z21InitialMallocHook_NewPKvm,-u_Z22InitialMallocHook_MMapPKvS0_miiil,-u_Z22InitialMallocHook_SbrkPKvl",
         "-Wl,-u_ZN15HeapLeakChecker12IgnoreObjectEPKv,-u_ZN15HeapLeakChecker14UnIgnoreObjectEPKv",
       ]
     }
 
     # Make sure the allocation library is optimized as much as possible when
     # we"re in release mode.
     if (!is_debug) {
       configs -= [ "//build/config/compiler:optimize" ]
       configs += [ "//build/config/compiler:optimize_max" ]
     }
 
-    deps += [
-      "//base/third_party/dynamic_annotations",
-    ]
+    deps += [ "//base/third_party/dynamic_annotations" ]
 
     if (is_win) {
       ldflags = [ "/ignore:4006:4221" ]
     }
   }
 }  # !is_android
 
 source_set("allocator_extension_thunks") {
   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" ]
   }
 }