ImageCapture browser tests: use IsWebcamAvailableOnSystem()

content/public/test/browser_test_utils.cc

Index: content/public/test/browser_test_utils.cc
diff --git a/content/public/test/browser_test_utils.cc b/content/public/test/browser_test_utils.cc
index 41df0cc65ed839dfd85fe5c0a09e5b4f8ef5ee78..3ec20b840674d393f02bd6009cf948ce8362fec6 100644
--- a/content/public/test/browser_test_utils.cc
+++ b/content/public/test/browser_test_utils.cc
@@ -418,16 +418,16 @@ void AppendGzippedResource(const base::RefCountedMemory& encoded,
 // no-video-input-devices otherwise.
 const char kHasVideoInputDeviceOnSystem[] =
     "(function() {"
-    "navigator.mediaDevices.enumerateDevices()"
-    ".then(function(devices) {"
-    "devices.forEach(function(device) {"
-    "if (device.kind == 'video') {"
-    "returnToTest('has-video-input-device');"
-    "return;"
-    "}"
-    "});"
-    "returnToTest('no-video-input-devices');"
-    "});"
+    "  navigator.mediaDevices.enumerateDevices()"

[lunalu1, 2016/09/16 16:56:22]

We can revert these changes now since these have been done in another CL
https://codereview.chromium.org/2334223012/

[mcasas, 2016/09/19 22:42:17]

Done: PS2 doesn't touch this file anymore.

+    "    .then((devices) => {"
+    "      devices.forEach(function(device) {"
+    "        if (device.kind == 'videoinput') {"
+    "          window.domAutomationController.send('has-video-input-device');"
+    "          return;"
+    "        }"
+    "      });"
+    "      window.domAutomationController.send('no-video-input-devices');"
+    "   });"
     "})()";
 
 const char kHasVideoInputDevice[] = "has-video-input-device";