Add use_allocator instead of linux_use_tcmalloc to switch the allocator.

ui/keyboard/keyboard.gyp

Index: ui/keyboard/keyboard.gyp
diff --git a/ui/keyboard/keyboard.gyp b/ui/keyboard/keyboard.gyp
index 97ea950bf354f630304ed2cdc854bc78d5817781..5de6ae076a28ad19c5646e028195bb319adce57f 100644
--- a/ui/keyboard/keyboard.gyp
+++ b/ui/keyboard/keyboard.gyp
@@ -100,7 +100,8 @@
         'keyboard_controller_unittest.cc',
       ],
       'conditions': [
-        ['OS=="linux" and linux_use_tcmalloc==1', {
+        # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
+        ['OS=="linux" and ((use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1))', {

[sky, 2014/03/04 22:19:07]

Oy, isn't there a better way to express this long if once and not duplicate it
in a ton of files?

[Dai Mikurube (NOT FULLTIME), 2014/03/04 22:27:53]

Sad news that we don't have that in gyp. :(  But :

1) The "long if" will be shortened into a single "use_allocator" statement after
the transition period.
2) The duplication in a ton of files will be refactored in the future plan. It's
not very trivial. Please see the bug.

           'dependencies': [
             '<(DEPTH)/base/allocator/allocator.gyp:allocator',
           ],