Add metrics for schemes of content setting exceptions

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 38125c49fc47152adee3113823403b4d37b53c5f..9ca587746c6844aecca17f43d469276f266b17fa 100644
--- a/components/content_settings/core/common/content_settings_pattern_unittest.cc
+++ b/components/content_settings/core/common/content_settings_pattern_unittest.cc
@@ -808,4 +808,22 @@ TEST(ContentSettingsPatternTest, MigrateFromDomainToOrigin) {
       ContentSettingsPattern::FromString("https://[*.]google.com:443"),
       &origin_pattern));
   EXPECT_EQ("https://google.com:443", origin_pattern.ToString());
+}
+
+TEST(ContentSettingsPatternTest, Schemes) {
+  EXPECT_EQ(ContentSettingsPattern::SCHEME_HTTP,
+            Pattern("http://www.example.com").GetScheme());
+  EXPECT_EQ(ContentSettingsPattern::SCHEME_HTTPS,
+            Pattern("https://www.example.com").GetScheme());
+  EXPECT_EQ(ContentSettingsPattern::SCHEME_FILE,
+            Pattern("file:///tmp/file.html").GetScheme());
+  EXPECT_EQ(ContentSettingsPattern::SCHEME_CHROMEEXTENSION,
+            Pattern("chrome-extension://peoadpeiejnhkmpaakpnompolbglelel/")
+                .GetScheme());
+  EXPECT_EQ(ContentSettingsPattern::SCHEME_WILDCARD,
+            Pattern("192.168.0.1").GetScheme());
+  EXPECT_EQ(ContentSettingsPattern::SCHEME_WILDCARD,
+            Pattern("www.example.com").GetScheme());
+  EXPECT_EQ(ContentSettingsPattern::SCHEME_OTHER,
+            Pattern("filesystem:http://www.google.com/temporary/").GetScheme());
 }