Clean content_settings_pattern_parser.* from unnecessary dependencies.

chrome/browser/content_settings/content_settings_utils.cc

Index: chrome/browser/content_settings/content_settings_utils.cc
diff --git a/chrome/browser/content_settings/content_settings_utils.cc b/chrome/browser/content_settings/content_settings_utils.cc
index 5c27fdb414dde52bf3f314310a317bafcb4221ac..cf396df6e94a5035e5961324cbe1aa2da3682156 100644
--- a/chrome/browser/content_settings/content_settings_utils.cc
+++ b/chrome/browser/content_settings/content_settings_utils.cc
@@ -17,6 +17,7 @@
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/content_settings_pattern.h"
+#include "extensions/common/constants.h"
 #include "url/gurl.h"
 
 namespace {
@@ -79,9 +80,9 @@ bool GetTypeFromName(const std::string& name,
 std::string CreatePatternString(
     const ContentSettingsPattern& item_pattern,
     const ContentSettingsPattern& top_level_frame_pattern) {
-  return item_pattern.ToString()
+  return item_pattern.ToString(extensions::kExtensionScheme)
          + std::string(kPatternSeparator)
-         + top_level_frame_pattern.ToString();
+         + top_level_frame_pattern.ToString(extensions::kExtensionScheme);
 }
 
 PatternPair ParsePatternString(const std::string& pattern_str) {
@@ -109,9 +110,11 @@ PatternPair ParsePatternString(const std::string& pattern_str) {
 
   PatternPair pattern_pair;
   pattern_pair.first =
-      ContentSettingsPattern::FromString(pattern_str_list[0]);
+      ContentSettingsPattern::FromString(extensions::kExtensionScheme,
+                                         pattern_str_list[0]);
   pattern_pair.second =
-      ContentSettingsPattern::FromString(pattern_str_list[1]);
+      ContentSettingsPattern::FromString(extensions::kExtensionScheme,
+                                         pattern_str_list[1]);
   return pattern_pair;
 }