Add migration code to change existing domain scoped content settings to be origin scoped

components/content_settings/core/common/content_settings_pattern_unittest.cc

Index: components/content_settings/core/common/content_settings_pattern_unittest.cc
diff --git a/components/content_settings/core/common/content_settings_pattern_unittest.cc b/components/content_settings/core/common/content_settings_pattern_unittest.cc
index 74e601979446d3c2ef185b6f358f03d05b2ed5f6..38125c49fc47152adee3113823403b4d37b53c5f 100644
--- a/components/content_settings/core/common/content_settings_pattern_unittest.cc
+++ b/components/content_settings/core/common/content_settings_pattern_unittest.cc
@@ -720,3 +720,92 @@ TEST(ContentSettingsPatternTest, CanonicalizePattern_Legacy) {
   EXPECT_STREQ("", Pattern("*\xC4\x87ira.com").ToString().c_str());
   EXPECT_STREQ("", Pattern("\xC4\x87ira.*").ToString().c_str());
 }
+
+TEST(ContentSettingsPatternTest, MigrateFromDomainToOrigin) {
+  ContentSettingsPattern origin_pattern;
+  // Http scheme patterns.
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("http://[*.]example.com"),
+      &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("http://[*.]example.com:80"),
+      &origin_pattern));
+
+  // Https patterns with port wildcard.
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("https://www.google.com"),
+      &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("https://[*.]google.com"),
+      &origin_pattern));
+
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("www.google.com"), &origin_pattern));
+
+  // Patterns with no domain wildcard.
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("*://www.google.com:8080"),
+      &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("www.example.com:8080"),
+      &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("www.google.com/*"), &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("google"), &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("https://www.google.com:443"),
+      &origin_pattern));
+
+  // Patterns with empty host.
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("*"), &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("[*.]"), &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("http://*"), &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("http://*:8080"), &origin_pattern));
+
+  // Other schemes and IP address patterns won't be migrated.
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("192.168.0.1"), &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("https://127.0.0.1"),
+      &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("http://[::1]"), &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("[::1]"), &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("file:///foo/bar.html"),
+      &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString(
+          "filesystem:http://www.google.com/temporary/"),
+      &origin_pattern));
+  EXPECT_FALSE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString(
+          "chrome-extension://peoadpeiejnhkmpaakpnompolbglelel/"),
+      &origin_pattern));
+
+  // These are pattern styles which might be generated using FromURL().
+  EXPECT_TRUE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("[*.]example.com"), &origin_pattern));
+  EXPECT_EQ("http://example.com:80", origin_pattern.ToString());
+
+  EXPECT_TRUE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("[*.]google.com:80"),
+      &origin_pattern));
+  EXPECT_EQ("http://google.com:80", origin_pattern.ToString());
+
+  EXPECT_TRUE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("[*.]example.com:123"),
+      &origin_pattern));
+  EXPECT_EQ("http://example.com:123", origin_pattern.ToString());
+
+  EXPECT_TRUE(ContentSettingsPattern::MigrateFromDomainToOrigin(
+      ContentSettingsPattern::FromString("https://[*.]google.com:443"),
+      &origin_pattern));
+  EXPECT_EQ("https://google.com:443", origin_pattern.ToString());
+}