Use third_party/custom_tabs_client as the src for customtabs library

chrome/android/java/src/android/support/customtabs/ICustomTabsCallback.aidl

Index: chrome/android/java/src/android/support/customtabs/ICustomTabsCallback.aidl
diff --git a/chrome/android/java/src/android/support/customtabs/ICustomTabsCallback.aidl b/chrome/android/java/src/android/support/customtabs/ICustomTabsCallback.aidl
deleted file mode 100644
index 9aa8fa903aeb04a6887112a200c48d015de55d3c..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/android/support/customtabs/ICustomTabsCallback.aidl
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2015 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.
-
-package android.support.customtabs;
-
-import android.os.Bundle;
-
-/**
- * Interface to a CustomTabsCallback.
- * @hide
- */
-oneway interface ICustomTabsCallback {
-    void onNavigationEvent(int navigationEvent, in Bundle extras) = 1;
-    void extraCallback(String callbackName, in Bundle args) = 2;
-}