Add layout tests for the audio component of MediaStream Recording.

content/shell/renderer/layout_test/blink_test_runner.h

Index: content/shell/renderer/layout_test/blink_test_runner.h
diff --git a/content/shell/renderer/layout_test/blink_test_runner.h b/content/shell/renderer/layout_test/blink_test_runner.h
index 0c45096bdb25f6fb8565c9bde1b99f471ee04f20..4e88a641a9377c80e5409536d4455a7f803f21f7 100644
--- a/content/shell/renderer/layout_test/blink_test_runner.h
+++ b/content/shell/renderer/layout_test/blink_test_runner.h
@@ -17,6 +17,7 @@
 #include "content/public/renderer/render_view_observer.h"
 #include "content/public/renderer/render_view_observer_tracker.h"
 #include "content/shell/common/shell_test_configuration.h"
+

[mcasas, 2015/11/17 21:56:00]

remove empty line

[ajose, 2015/11/18 03:35:27]

Done.

 #include "third_party/WebKit/public/platform/modules/screen_orientation/WebScreenOrientationType.h"
 #include "v8/include/v8.h"
 
@@ -133,7 +134,10 @@ class BlinkTestRunner : public RenderViewObserver,
                      const GURL& origin,
                      const GURL& embedding_origin) override;
   void ResetPermissions() override;
-  bool AddMediaStreamSourceAndTrack(blink::WebMediaStream* stream) override;
+  bool AddMediaStreamVideoSourceAndTrack(
+      blink::WebMediaStream* stream) override;
+  bool AddMediaStreamAudioSourceAndTrack(
+      blink::WebMediaStream* stream) override;
   cc::SharedBitmapManager* GetSharedBitmapManager() override;
   void DispatchBeforeInstallPromptEvent(
       int request_id,