Fix b180514: Some exception entries cannot be deleted from a setting panel.

chrome/common/content_settings_pattern_unittest.cc

Index: chrome/common/content_settings_pattern_unittest.cc
diff --git a/chrome/common/content_settings_pattern_unittest.cc b/chrome/common/content_settings_pattern_unittest.cc
index bd793382e87cc3a6c8019962622f52605084be16..8e465f44f66006a5eaa624f544ed8b8a31bfa955 100644
--- a/chrome/common/content_settings_pattern_unittest.cc
+++ b/chrome/common/content_settings_pattern_unittest.cc
@@ -194,18 +194,29 @@ TEST(ContentSettingsPatternTest, Wildcard) {
                 ContentSettingsPattern::Wildcard()));
 }
 
-TEST(ContentSettingsPatternTest, TrimEndingDotFromHost) {
+TEST(ContentSettingsPatternTest, TrimEndingDots) {
   EXPECT_TRUE(Pattern("www.example.com").IsValid());
   EXPECT_TRUE(Pattern("www.example.com").Matches(
       GURL("http://www.example.com")));
   EXPECT_TRUE(Pattern("www.example.com").Matches(
-      GURL("http://www.example.com.")));
+      GURL("http://www.example.com..")));
 
-  EXPECT_TRUE(Pattern("www.example.com.").IsValid());
+  EXPECT_TRUE(Pattern("www.example.com..").IsValid());
   EXPECT_STREQ("www.example.com",
-               Pattern("www.example.com.").ToString().c_str());
+               Pattern("www.example.com..").ToString().c_str());
 
-  EXPECT_TRUE(Pattern("www.example.com.") == Pattern("www.example.com"));
+  EXPECT_TRUE(Pattern("www.example.com..") == Pattern("www.example.com"));
+}
+
+TEST(ContentSettingsPatternTest, TrimEndingDotsWithStringConsistsOfDots) {
+  EXPECT_TRUE(Pattern(".").IsValid());
+  EXPECT_TRUE(Pattern(".").Matches(GURL("http://.")));
+  EXPECT_TRUE(Pattern(".").Matches(GURL("http://..")));
+
+  EXPECT_TRUE(Pattern("..").IsValid());
+  EXPECT_STREQ(".", Pattern("..").ToString().c_str());
+
+  EXPECT_TRUE(Pattern("..") == Pattern("."));
 }
 
 TEST(ContentSettingsPatternTest, FromString_WithNoWildcards) {