Update idlsync.py to pull in dependencies required for chrome api generation.

third_party/chrome/tools/test/dependency_tester.json

Index: third_party/chrome/tools/test/dependency_tester.json
diff --git a/third_party/chrome/tools/test/dependency_tester.json b/third_party/chrome/tools/test/dependency_tester.json
deleted file mode 100644
index 15ff4ac08bd1ed8cbf3bb3b5bee07e8a6becaf98..0000000000000000000000000000000000000000
--- a/third_party/chrome/tools/test/dependency_tester.json
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "dependencyTester",
-    "dependencies": [ "browserAction", "fontSettings" ],
-    "types": [],
-    "functions": [
-      {
-        "name": "setTitle",
-        "type": "function",
-        "description": "hi",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "color": {
-                "$ref": "browserAction.ColorArray"
-              },
-              "scriptCode": {
-                "$ref": "fontSettings.FakeStringType"
-              }
-            }
-          }
-        ]
-      }
-    ]
-  }
-]