Change GetBrowserItemIndex() to GetLauncherItemIndexForType()

ash/shelf/shelf_util.h

Index: ash/shelf/shelf_util.h
diff --git a/ash/shelf/shelf_util.h b/ash/shelf/shelf_util.h
index daf6c0f0e78eb209306f844b49464c892706e36d..b26453b92bfd1980156bb2cf1462e64750500c05 100644
--- a/ash/shelf/shelf_util.h
+++ b/ash/shelf/shelf_util.h
@@ -6,13 +6,16 @@
 #define ASH_SHELF_SHELF_UTIL_H_
 
 #include "ash/ash_export.h"
+#include "ash/launcher/launcher_types.h"
 
 namespace ash {
 
 class LauncherModel;
 
-// Return the index of the browser item from a given |launcher_model|.
-ASH_EXPORT int GetBrowserItemIndex(const LauncherModel& launcher_model);
+// Return the index of the |type| from a given |launcher_model|.
+// |type| should be either TYPE_BROWSER_SHORTCUT or TYPE_APP_LIST.
+ASH_EXPORT int GetLauncherItemIndexForType(LauncherItemType type,
+                                           const LauncherModel& launcher_model);
 
 }  // namespace ash