Make test_runner::AppBannerClient an internal detail of components/test_runner.

components/test_runner/web_test_delegate.h

 // Copyright 2013 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.
 
 #ifndef COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 #define COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 261 matching lines @@
   // Causes the beforeinstallprompt event to be sent to the renderer with a
   // request id of |request_id|. |event_platforms| are the platforms to be sent
   // with the event. Once the event listener completes, |callback| will be
   // called with a boolean argument. This argument will be true if the event is
   // canceled, and false otherwise.
   virtual void DispatchBeforeInstallPromptEvent(
       int request_id,
       const std::vector<std::string>& event_platforms,
       const base::Callback<void(bool)>& callback) = 0;
 
-  // Resolve the promise associated with the beforeinstallprompt even with
-  // request id |request_id|. The promise is resolved with a result.platform set
-  // to |platform|. If |platform| is not empty, result.outcome will be
-  // 'accepted', otherwise it will be 'dismissed'.
-  virtual void ResolveBeforeInstallPromptPromise(
-      int request_id,
-      const std::string& platform) = 0;
-
   virtual blink::WebPlugin* CreatePluginPlaceholder(
     blink::WebLocalFrame* frame,
     const blink::WebPluginParams& params) = 0;
 
   // Convert the position in DIP to native coordinates.
   virtual blink::WebPoint ConvertDIPToNative(
       const blink::WebPoint& point_in_dip) const = 0;
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_