Clean content_settings_pattern_parser.* from unnecessary dependencies.

chrome/browser/content_settings/content_settings_policy_provider.cc

Index: chrome/browser/content_settings/content_settings_policy_provider.cc
diff --git a/chrome/browser/content_settings/content_settings_policy_provider.cc b/chrome/browser/content_settings/content_settings_policy_provider.cc
index f41669e5cc00644e4b4b0e23dbfbc9255948c12f..5917ef685f52106eba160426c6e512adaa10a62a 100644
--- a/chrome/browser/content_settings/content_settings_policy_provider.cc
+++ b/chrome/browser/content_settings/content_settings_policy_provider.cc
@@ -19,6 +19,7 @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
+#include "extensions/common/constants.h"
 
 using content::BrowserThread;
 
@@ -365,12 +366,13 @@ void PolicyProvider::GetAutoSelectCertificateSettingsFromPreferences(
       continue;
     }
 
-    ContentSettingsPattern pattern =
-        ContentSettingsPattern::FromString(pattern_str);
+    ContentSettingsPattern pattern = ContentSettingsPattern::FromString(
+        extensions::kExtensionScheme, pattern_str);
     // Ignore invalid patterns.
     if (!pattern.IsValid()) {
       VLOG(1) << "Ignoring invalid certificate auto select setting:"
-                 " Invalid content settings pattern: " << pattern;
+          << " Invalid content settings pattern: "
+          << pattern.ToString(extensions::kExtensionScheme);
       continue;
     }