Removed duplicated JS hasVideoInputDeviceOnSystem() test helper

chrome/browser/media/webrtc_webcam_browsertest.cc

 // Copyright 2014 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.
 
 #include "base/command_line.h"
 #include "build/build_config.h"
 #include "chrome/browser/media/webrtc_browsertest_base.h"
 #include "chrome/browser/media/webrtc_browsertest_common.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
@@ skipping 60 matching lines @@
 // This test is manual because the test results can vary heavily depending on
 // which webcam or drivers you have on the system.
 IN_PROC_BROWSER_TEST_P(WebRtcWebcamBrowserTest,
                        MANUAL_TestAcquiringAndReacquiringWebcam) {
   ASSERT_TRUE(embedded_test_server()->Start());
   GURL url(embedded_test_server()->GetURL(kMainWebrtcTestHtmlPage));
   ui_test_utils::NavigateToURL(browser(), url);
   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;
   }
 
   EXPECT_EQ("320x240",
             GetUserMediaAndGetStreamSize(tab, kVideoCallConstraintsQVGA));
   EXPECT_EQ("640x480",
             GetUserMediaAndGetStreamSize(tab, kVideoCallConstraintsVGA));
   EXPECT_EQ("640x360",
             GetUserMediaAndGetStreamSize(tab, kVideoCallConstraints360p));
   EXPECT_EQ("1280x720",
             GetUserMediaAndGetStreamSize(tab, kVideoCallConstraints720p));
   EXPECT_EQ("1920x1080",
             GetUserMediaAndGetStreamSize(tab, kVideoCallConstraints1080p));
 }
 
 INSTANTIATE_TEST_CASE_P(WebRtcWebcamBrowserTests,
                         WebRtcWebcamBrowserTest,
                         testing::ValuesIn(kTestConfigFlags));