Merge 78737 - Revert 74236 - Mac: Turn on tab overview mode by default.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
===================================================================
--- chrome/browser/about_flags.cc	(revision 78744)
+++ chrome/browser/about_flags.cc	(working copy)
@@ -81,6 +81,18 @@
 // When adding a new choice, add it to the end of the list.
 const Experiment kExperiments[] = {
   {
+    "expose-for-tabs",  // FLAGS:RECORD_UMA
+    IDS_FLAGS_TABPOSE_NAME,
+    IDS_FLAGS_TABPOSE_DESCRIPTION,
+    kOsMac,
+#if defined(OS_MACOSX)
+    // The switch exists only on OS X.
+    SINGLE_VALUE_TYPE(switches::kEnableExposeForTabs)
+#else
+    SINGLE_VALUE_TYPE("")
+#endif
+  },
+  {
     kMediaPlayerExperimentName,
     IDS_FLAGS_MEDIA_PLAYER_NAME,
     IDS_FLAGS_MEDIA_PLAYER_DESCRIPTION,