Update outdated comment.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 2433392a2c1287d5fcad8be7820151add9448d8f..13bf66a401bc9ea9f592450652b6ab5ffa4130e9 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -3746,16 +3746,13 @@
                 '-Wstring-conversion',
               ],
               'OTHER_CPLUSPLUSFLAGS': [
-                # gnu++11 instead of c++11 so that __ANSI_C__ doesn't get
-                # defined.  (Else e.g. finite() in base/float_util.h needs to
-                # be isfinite() which doesn't exist on the android bots.)
-                # typeof() is also disabled in c++11 (but we could use

[danakj, 2013/05/09 00:02:24]

Oh, it mentioned typeof() here, but I see it's also in the TODO, okay.

-                # decltype() instead).
-                # TODO(thakis): Use CLANG_CXX_LANGUAGE_STANDARD instead once all
-                # bots use xcode 4 -- http://crbug.com/147515).
+                # gnu++11 instead of c++11 is needed because some code uses
+                # typeof() (a GNU extension).
                 # TODO(thakis): Eventually switch this to c++11 instead of
                 # gnu++11 (once typeof can be removed, which is blocked on c++11
                 # being available everywhere).
+                # TODO(thakis): Use CLANG_CXX_LANGUAGE_STANDARD instead once all
+                # bots use xcode 4 -- http://crbug.com/147515).
                 '$(inherited)', '-std=gnu++11',
               ],
             }],