Introduced base class for WebRTC browser tests, cleaned up duplication.

chrome/browser/media/webrtc_browsertest_base.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 CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_BASE_H_
+#define CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_BASE_H_
+
+#include "chrome/test/base/in_process_browser_test.h"
+
+namespace content {
+class WebContents;
+}
+
+class MediaStreamInfoBarDelegate;
+
+// Base class for WebRTC browser tests with useful primitives for interacting
+// getUserMedia. We use inheritance here because it makes the test code look
+// as clean as it can be.
+class WebRtcTestBase : public InProcessBrowserTest {
+ public:
+  // Typical constraints.
+  static const char kAudioVideoCallConstraints[];
+  static const char kAudioOnlyCallConstraints[];
+  static const char kVideoOnlyCallConstraints[];
+
+  static const char kFailedWithErrorPermissionDenied[];
+  static const char kOkGotStream[];
+
+ protected:
+  MediaStreamInfoBarDelegate* GetUserMediaAndWaitForInfobar(
+      content::WebContents* tab_contents,
+      const std::string& constraints);
+  void CloseInfobarInTab(content::WebContents* tab_contents,
+                         MediaStreamInfoBarDelegate* infobar);
+  void GetUserMediaAndAccept(content::WebContents* tab_contents);
+  void GetUserMediaWithSpecificConstraintsAndAccept(
+      content::WebContents* tab_contents, const std::string& constraints);
+  void GetUserMediaAndDeny(content::WebContents* tab_contents);
+  void GetUserMediaWithSpecificConstraintsAndDeny(
+      content::WebContents* tab_contents, const std::string& constraints);
+  void GetUserMediaAndDismiss(content::WebContents* tab_contents);
+  void GetUserMedia(content::WebContents* tab_contents,
+                    const std::string& constraints);
+};
+
+#endif  // CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_BASE_H_