Convert the existing .gyp configuration to use the new base\allocator...

base/allocator/allocator.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'jemalloc_dir': '../../third_party/jemalloc/chromium',
     'tcmalloc_dir': '../../third_party/tcmalloc/chromium',
   },
   'targets': [
@@ skipping 186 matching lines @@
             '<(tcmalloc_dir)/src/memory_region_map.h',
             '<(tcmalloc_dir)/src/profiledata.cc',
             '<(tcmalloc_dir)/src/profiledata.h',
             '<(tcmalloc_dir)/src/profile-handler.cc',
             '<(tcmalloc_dir)/src/profile-handler.h',
             '<(tcmalloc_dir)/src/profiler.cc',
           ],
         }],
         ['OS=="linux"', {
           'sources!': [
-            '<(tcmalloc_dir)/src/page_heap.cc',
             '<(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',
 
             # TODO(willchan): support jemalloc on other platforms
             # jemalloc files
             '<(jemalloc_dir)/jemalloc.c',
             '<(jemalloc_dir)/jemalloc.h',
             '<(jemalloc_dir)/ql.h',
             '<(jemalloc_dir)/qr.h',
             '<(jemalloc_dir)/rb.h',
+
+            # TODO(willchan):  Return to using this when page_heap_linux.cc
+            # becomes unnecessary.
+            '<(tcmalloc_dir)/src/page_heap.cc',
+          ],
+          # TODO(willchan):  This is actually just a branched copy of the
+          # vanilla upstream page_heap.cc.  The current forked copy of
+          # page_heap.cc has Windows-specific code in it so Linux can't
+          # use it.  These need to be refactored so we can track changes
+          # to the upstream page_heap.cc without duplication.
+          'sources': [
+            '<(tcmalloc_dir)/src/page_heap_linux.cc',
           ],
           'cflags!': [
             '-fvisibility=hidden',
           ],
           'link_settings': {
             '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.
@@ skipping 50 matching lines @@
       ],
     }],
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: