Remove old flags from about:flags and add new ones instead.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
===================================================================
--- chrome/browser/about_flags.cc	(revision 154320)
+++ chrome/browser/about_flags.cc	(working copy)
@@ -349,20 +349,13 @@
     SINGLE_VALUE_TYPE(switches::kEnableNaClExceptionHandling)
   },
   {
-    "nacl-gdb",  // FLAGS:RECORD_UMA
-    IDS_FLAGS_NACL_GDB_NAME,
-    IDS_FLAGS_NACL_GDB_DESCRIPTION,
-    kOsWin,
-    SINGLE_VALUE_TYPE(switches::kNaClGdb)
+    "enable-nacl-debug",  // FLAGS:RECORD_UMA
+    IDS_FLAGS_ENABLE_NACL_DEBUG_NAME,
+    IDS_FLAGS_ENABLE_NACL_DEBUG_DESCRIPTION,
+    kOsWin | kOsLinux | kOsCrOS,

[Mark Seaborn, 2012/08/31 20:10:18]

Let's just put kOsAll.  Mac support will be done soon.  There's no need to
create extra work for changing this later -- we're likely to forget.

[halyavin, 2012/09/03 12:04:39]

Done.

+    SINGLE_VALUE_TYPE(switches::kEnableNaClDebug)
   },
   {
-    "nacl-gdb-script",  // FLAGS:RECORD_UMA
-    IDS_FLAGS_NACL_GDB_SCRIPT_NAME,
-    IDS_FLAGS_NACL_GDB_SCRIPT_DESCRIPTION,
-    kOsAll,
-    SINGLE_VALUE_TYPE(switches::kNaClGdbScript)
-  },
-  {
     "enable-pnacl",  // FLAGS:RECORD_UMA
     IDS_FLAGS_ENABLE_PNACL_NAME,
     IDS_FLAGS_ENABLE_PNACL_DESCRIPTION,