doubly-linked free-lists for thread caches and page heaps

base/allocator/allocator.gyp

Index: base/allocator/allocator.gyp
diff --git a/base/allocator/allocator.gyp b/base/allocator/allocator.gyp
index 97490eab5f41962e854658293ec7e9904d656834..f1124fce176c1f0dbc9e15e2610d6167678ff054 100644
--- a/base/allocator/allocator.gyp
+++ b/base/allocator/allocator.gyp
@@ -94,6 +94,8 @@
         '<(tcmalloc_dir)/src/common.cc',
         '<(tcmalloc_dir)/src/common.h',
         '<(tcmalloc_dir)/src/debugallocation.cc',
+        '<(tcmalloc_dir)/src/free_list.cc',
+        '<(tcmalloc_dir)/src/free_list.h',
         '<(tcmalloc_dir)/src/getpc.h',
         '<(tcmalloc_dir)/src/google/heap-checker.h',
         '<(tcmalloc_dir)/src/google/heap-profiler.h',
@@ -264,6 +266,10 @@
         },
       },
       'configurations': {
+        'Debug': {
+          'defines': 
+          ['TCMALLOC_USE_DOUBLYLINKED_FREELIST'],
+        },
         'Debug_Base': {
           'msvs_settings': {
             'VCCLCompilerTool': {