Correctly record WebAPK install source for Launch.HomescreenSource

chrome/browser/android/shortcut_info.h

Index: chrome/browser/android/shortcut_info.h
diff --git a/chrome/browser/android/shortcut_info.h b/chrome/browser/android/shortcut_info.h
index 1c17fec0363191984438242281aa2db60bfa6d4a..71d1726f193ec8da4bc33c55627261152cd5ec6a 100644
--- a/chrome/browser/android/shortcut_info.h
+++ b/chrome/browser/android/shortcut_info.h
@@ -49,7 +49,10 @@ struct ShortcutInfo {
     // Used for WebAPK PWAs added via the banner.
     SOURCE_APP_BANNER_WEBAPK = 10,
 
-    SOURCE_COUNT = 11
+    // Used for WebAPK PWAs whose install source info are lost.

[pkotwicz, 2017/05/05 21:05:43]

Nit: "are lost" -> "was lost" (because "source information" is singular)

[Xi Han, 2017/05/08 20:55:28]

Thanks!

+    SOURCE_WEBAPK_UNKNOWN = 11,
+
+    SOURCE_COUNT = 12
   };
 
   explicit ShortcutInfo(const GURL& shortcut_url);