Disable app list folders by default for non-ChromeOS platforms.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index a8ffdc201296e3a34510dcd7fb1e06a9adff7d48..1cb6fec8c27cfd5bde17727f2400c4ca5f39f5b7 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -1530,13 +1530,23 @@ const Experiment kExperiments[] = {
     SINGLE_VALUE_TYPE(switches::kEnableAppList)
   },
 #endif
+#if defined(OS_CHROMEOS)

[benwells, 2014/04/02 03:59:58]

Why guard this in #if, it is already guarded with the kOsCrOS thing?

[calamity, 2014/04/02 04:23:17]

Similar reason to --enable-app-list above. It would be visible in the bottom
section of the chrome://flags page.

I suppose the other option is to make it a combobox?

   {
     "disable-app-list-folder-ui",
     IDS_FLAGS_DISABLE_APP_LIST_FOLDER,
     IDS_FLAGS_DISABLE_APP_LIST_FOLDER_DESCRIPTION,
-    kOsWin | kOsLinux | kOsCrOS,
+    kOsCrOS,
     SINGLE_VALUE_TYPE(app_list::switches::kDisableFolderUI)
   },
+#else
+  {
+    "enable-app-list-folder-ui",
+    IDS_FLAGS_ENABLE_APP_LIST_FOLDER,
+    IDS_FLAGS_ENABLE_APP_LIST_FOLDER_DESCRIPTION,
+    kOsWin | kOsLinux,
+    SINGLE_VALUE_TYPE(app_list::switches::kEnableFolderUI)
+  },
+#endif
   {
     "disable-app-list-voice-search",
     IDS_FLAGS_DISABLE_APP_LIST_VOICE_SEARCH,