Removed duplicated JS hasVideoInputDeviceOnSystem() test helper

chrome/browser/media/webrtc_webcam_browsertest.cc

Index: chrome/browser/media/webrtc_webcam_browsertest.cc
diff --git a/chrome/browser/media/webrtc_webcam_browsertest.cc b/chrome/browser/media/webrtc_webcam_browsertest.cc
index 9fe32a470b6c69234492896cccb94538f8fd579c..138e9a892515123a1f5618899974f333340e2c3d 100644
--- a/chrome/browser/media/webrtc_webcam_browsertest.cc
+++ b/chrome/browser/media/webrtc_webcam_browsertest.cc
@@ -78,7 +78,7 @@ IN_PROC_BROWSER_TEST_P(WebRtcWebcamBrowserTest,
   content::WebContents* tab =
       browser()->tab_strip_model()->GetActiveWebContents();
 
-  if (!HasWebcamAvailableOnSystem(tab)) {
+  if (!content::HasWebcamAvailableOnSystem(tab)) {
     LOG(INFO) << "No webcam found on bot: skipping...";

[mcasas, 2016/09/06 15:34:54]

nit: s/LOG/DLOG/ which is technically more
correct, and anyway we compile tests with NDEBUG
set to false.

[lunalu1, 2016/09/06 20:56:13]

Done.

     return;
   }