Disabling WebRtcAudioQualityBrowserTest for Win 7

chrome/browser/media/webrtc/webrtc_browsertest_base.h

Index: chrome/browser/media/webrtc/webrtc_browsertest_base.h
diff --git a/chrome/browser/media/webrtc/webrtc_browsertest_base.h b/chrome/browser/media/webrtc/webrtc_browsertest_base.h
index e6a0461841a5d9b036b1d10e135ff1b6dc4a9e25..37ad59f776aa7beb724d739da15fe70d639598d3 100644
--- a/chrome/browser/media/webrtc/webrtc_browsertest_base.h
+++ b/chrome/browser/media/webrtc/webrtc_browsertest_base.h
@@ -157,6 +157,9 @@ class WebRtcTestBase : public InProcessBrowserTest {
   std::string GetStreamSize(content::WebContents* tab_contents,
                             const std::string& video_element) const;
 
+  // Returns true if we're on Windows 7.
+  bool OnWin7() const;
+
   // Returns true if we're on win 8.
   bool OnWin8() const;