Allow permission bubbles to participate in key event dispatch as if they were a Browser.

chrome/browser/permissions/permission_request_manager_test_api.h

Index: chrome/browser/permissions/permission_request_manager_test_api.h
diff --git a/chrome/browser/permissions/permission_request_manager_test_api.h b/chrome/browser/permissions/permission_request_manager_test_api.h
new file mode 100644
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+++ b/chrome/browser/permissions/permission_request_manager_test_api.h
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+// Copyright 2017 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 CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_MANAGER_TEST_API_H_
+#define CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_MANAGER_TEST_API_H_
+
+#include "base/macros.h"
+#include "chrome/browser/permissions/permission_request_manager.h"
+#include "content/public/browser/permission_type.h"
+
+class Browser;
+class Profile;
+
+namespace test {
+
+class PermissionRequestManagerTestApi {
+ public:
+  explicit PermissionRequestManagerTestApi(PermissionRequestManager* manager);
+
+  // Wraps the PermissionRequestManager for the active tab in |browser|.
+  explicit PermissionRequestManagerTestApi(Browser* browser);
+
+  PermissionRequestManager* manager() { return manager_; }
+
+  // Add a "simple" permission request. One that uses PermissionRequestImpl,
+  // such as for content::PermissionType including MIDI_SYSEX, PUSH_MESSAGING,
+  // NOTIFICATIONS, GEOLOCATON, or FLASH. This can be called multiple times
+  // before a call to manager()->DisplayPendingRequests().
+  void AddSimpleRequest(Profile* profile, content::PermissionType type);
+
+  // Return the bubble window for the permission prompt or null if there is no
+  // prompt currently showing.
+  gfx::NativeWindow GetPromptWindow();
+
+ private:
+  PermissionRequestManager* manager_;
+
+  DISALLOW_COPY_AND_ASSIGN(PermissionRequestManagerTestApi);
+};
+
+}  // namespace test
+
+#endif  // CHROME_BROWSER_PERMISSIONS_PERMISSION_REQUEST_MANAGER_TEST_API_H_