Add the browser test for the new gallery.

chrome/test/data/extensions/api_test/file_manager_browsertest/manifest.json

Index: chrome/test/data/extensions/api_test/file_manager_browsertest/manifest.json
diff --git a/chrome/test/data/extensions/api_test/file_manager_browsertest/manifest.json b/chrome/test/data/extensions/api_test/file_manager_browsertest/manifest.json
deleted file mode 100644
index 97d94de116ea8e804e618ce3c618ee1f1234c81a..0000000000000000000000000000000000000000
--- a/chrome/test/data/extensions/api_test/file_manager_browsertest/manifest.json
+++ /dev/null
@@ -1,39 +0,0 @@
-{
-  // chrome-extension://hoobinhbdbiehknkpbpejbbpdbkdjmoco/
-  "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDBjsTE4ocXJWzgcCDCUcsPASoRCGaTHrHn6b4zDTCayTuJtyGKzw4xZPMiG4dbEbmSAwEU7UCoyJAM1XfLS7UQ/Zz7ft8wpZkSS8/PJW+E4Qu++tMS0csj2Wdrrd2c5yyWxlJ+H9o2ivwtwuxs7pd+LXt+gsBA0epnT04T9EvOTQIDAQAB",
-  "name": "chrome file manager browser tests",
-  "version": "0.1",
-  "incognito": "split",  // Run a separate instance for the incognito mode.
-  "manifest_version": 2,
-  "background": {
-    "scripts": [
-      // List background.js first because the testcase namespace is defined
-      // here.
-      "background.js",
-      "create_new_folder.js",
-      "drive_specific.js",
-      "copy_between_windows.js",
-      "execute_default_task.js",
-      "file_display.js",
-      "keyboard_operations.js",
-      "multi_profile.js",
-      "navigation_list.js",
-      "open_audio_files.js",
-      "open_zip_files.js",
-      "open_video_files.js",
-      "restore_geometry.js",
-      "restore_prefs.js",
-      "share_dialog.js",
-      "suggest_app_dialog.js",
-      "tab_index.js",
-      "thumbnails.js",
-      "transfer.js",
-      "traverse.js"
-    ]
-  },
-  "permissions": [
-    "tabs",
-    "chrome-extension://oobinhbdbiehknkpbpejbbpdbkdjmoco/*",
-    "chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj/*"
-  ]
-}