[Extensions API] Remove inline enums

chrome/common/extensions/api/wallpaper_private.json

Index: chrome/common/extensions/api/wallpaper_private.json
diff --git a/chrome/common/extensions/api/wallpaper_private.json b/chrome/common/extensions/api/wallpaper_private.json
index 6a8828081dbe89657eb5f60a79e6d3085627f795..b2b6c933f47a7059ab6f02bd2b7a3dfbf65f8054 100644
--- a/chrome/common/extensions/api/wallpaper_private.json
+++ b/chrome/common/extensions/api/wallpaper_private.json
@@ -11,9 +11,9 @@
     "description": "none",
     "types": [
       {
-        "id": "WallpaperLayout",
+        "id": "WallpaperSource",
         "type": "string",
-        "enum": [ "STRETCH", "CENTER", "CENTER_CROPPED" ]
+        "enum": [ "ONLINE", "OEM" ]
       }
     ],
     "functions": [
@@ -67,7 +67,7 @@
           },
           {
             "name": "layout",
-            "$ref": "WallpaperLayout"
+            "$ref": "wallpaper.WallpaperLayout"
           },
           {
             "type": "function",
@@ -93,7 +93,7 @@
           },
           {
             "name": "layout",
-            "$ref": "WallpaperLayout"
+            "$ref": "wallpaper.WallpaperLayout"
           },
           {
             "type": "string",
@@ -125,7 +125,7 @@
           },
           {
             "name": "layout",
-            "$ref": "WallpaperLayout"
+            "$ref": "wallpaper.WallpaperLayout"
           },
           {
             "type": "boolean",
@@ -157,7 +157,7 @@
         "parameters": [
           {
             "name": "layout",
-            "$ref": "WallpaperLayout"
+            "$ref": "wallpaper.WallpaperLayout"
           },
           {
             "type": "function",
@@ -193,8 +193,7 @@
           },
           {
             "name": "source",
-            "type": "string",
-            "enum": [ "ONLINE", "OEM" ]
+            "$ref": "WallpaperSource"
           },
           {
             "type": "function",