Move extension_error_utils.* and url_pattern_set.* into

extensions/common/url_pattern_set.h

Index: extensions/common/url_pattern_set.h
diff --git a/chrome/common/extensions/url_pattern_set.h b/extensions/common/url_pattern_set.h
similarity index 94%
rename from chrome/common/extensions/url_pattern_set.h
rename to extensions/common/url_pattern_set.h
index b39c61446fb9a08de5cf6ccc5d9fa73237c58dab..2f7113973835ffe4346b00ac199cc1723d07cd65 100644
--- a/chrome/common/extensions/url_pattern_set.h
+++ b/extensions/common/url_pattern_set.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_COMMON_EXTENSIONS_URL_PATTERN_SET_H_
-#define CHROME_COMMON_EXTENSIONS_URL_PATTERN_SET_H_
+#ifndef EXTENSIONS_COMMMON_URL_PATTERN_SET_H_
+#define EXTENSIONS_COMMMON_URL_PATTERN_SET_H_
 
 #include <set>
 
@@ -17,6 +17,8 @@ class ListValue;
 class Value;
 }
 
+namespace extensions {
+
 // Represents the set of URLs an extension uses for web content.
 class URLPatternSet {
  public:
@@ -94,4 +96,6 @@ class URLPatternSet {
   std::set<URLPattern> patterns_;
 };
 
-#endif  // CHROME_COMMON_EXTENSIONS_URL_PATTERN_SET_H_
+}  // namespace extensions
+
+#endif  // EXTENSIONS_COMMMON_URL_PATTERN_SET_H_