Clean content_settings_pattern_parser.* from unnecessary dependencies.

chrome/browser/media/media_stream_devices_controller.cc

Index: chrome/browser/media/media_stream_devices_controller.cc
diff --git a/chrome/browser/media/media_stream_devices_controller.cc b/chrome/browser/media/media_stream_devices_controller.cc
index 431af985362b043c48a232b1c535c8c0baebccfb..76a25ac3a3e39ffb8476d3168190d324edcddaf4 100644
--- a/chrome/browser/media/media_stream_devices_controller.cc
+++ b/chrome/browser/media/media_stream_devices_controller.cc
@@ -474,8 +474,8 @@ MediaStreamDevicesController::GetDevicePolicy(
     std::string value;
     for (size_t i = 0; i < list->GetSize(); ++i) {
       if (list->GetString(i, &value)) {
-        ContentSettingsPattern pattern =
-            ContentSettingsPattern::FromString(value);
+        ContentSettingsPattern pattern = ContentSettingsPattern::FromString(
+            extensions::kExtensionScheme, value);
         if (pattern == ContentSettingsPattern::Wildcard()) {
           DLOG(WARNING) << "Ignoring wildcard URL pattern: " << value;
           continue;