Add a skeleton Start Page to the experimental app list.

ui/app_list/app_list_switches.cc

Index: ui/app_list/app_list_switches.cc
diff --git a/ui/app_list/app_list_switches.cc b/ui/app_list/app_list_switches.cc
index 77a72f032dd66480f2ae4a3e8846f437f7a06014..ca0f34c958df97d0d23092f6c28270980336ee5c 100644
--- a/ui/app_list/app_list_switches.cc
+++ b/ui/app_list/app_list_switches.cc
@@ -9,21 +9,24 @@
 namespace app_list {
 namespace switches {
 
-// If set, the experimental app list will be used.
-const char kEnableExperimentalAppList[] = "enable-experimental-app-list";
-
 // If set, folder will be disabled in app list UI.
 const char kDisableFolderUI[] = "disable-app-list-folder-ui";
 
 // If set, the voice search is disabled in app list UI.
 const char kDisableVoiceSearch[] = "disable-app-list-voice-search";
 
+// If set, the app info context menu item is available in the app list UI.
+const char kEnableAppInfo[] = "enable-app-list-app-info";
+
+// If set, the experimental app list will be used.
+const char kEnableExperimentalAppList[] = "enable-experimental-app-list";
+
 // If set, it will always listen to the audio locally and open the app-list
 // when the hotword is recognized.
 const char kEnableHotwordAlwaysOn[] = "enable-app-list-hotword-always-on";
 
-// If set, the app info context menu item is available in the app list UI.
-const char kEnableAppInfo[] = "enable-app-list-app-info";
+// If set, the app list will show the start page webui.
+const char kShowAppListStartPage[] = "show-app-list-start-page";

[xiyuan, 2014/03/14 17:00:54]

Can we get rid of this and use just kEnableExperimentalAppList? Start page is
dead and replaced by the new UI. It should be okay to drop it.

[calamity, 2014/05/07 06:11:52]

Done.

 
 // Folder UI is enabled by default.
 bool IsFolderUIEnabled() {
@@ -57,5 +60,9 @@ bool IsExperimentalAppListEnabled() {
       kEnableExperimentalAppList);
 }
 
+bool IsStartPageWebUIEnabled() {
+  return CommandLine::ForCurrentProcess()->HasSwitch(kShowAppListStartPage);
+}
+
 }  // namespace switches
 }  // namespace app_list