Site Settings: Give each category its own route.

chrome/test/data/webui/settings/site_settings_category_tests.js

Index: chrome/test/data/webui/settings/site_settings_category_tests.js
diff --git a/chrome/test/data/webui/settings/site_settings_category_tests.js b/chrome/test/data/webui/settings/site_settings_category_tests.js
index 26a3c7b699f78b266bc1b76ffb26e6530d82f5a3..907386c339dc19d0c070ca3eeca7b25c75666e30 100644
--- a/chrome/test/data/webui/settings/site_settings_category_tests.js
+++ b/chrome/test/data/webui/settings/site_settings_category_tests.js
@@ -64,6 +64,37 @@ cr.define('site_settings_category', function() {
         MockInteractions.tap(testElement.$.toggle);
         assertTrue(testElement.categoryEnabled);
       });
+
+      test('basic category tests', function() {
+        for (var key in settings.ContentSettingsTypes) {
+          var category = settings.ContentSettingsTypes[key];
+
+          // Test transitivity of textId to enum and back.
+          var computedTextId = testElement.computeCategoryTextId(category);
+          var computedCategory =
+              testElement.computeCategoryFromTextId(computedTextId);
+          assertEquals(category, computedCategory);
+
+          // All categories have an icon, a title, and pref names.
+          assertNotEquals(
+              '', testElement.computeIconForContentCategory(category));
+          assertNotEquals(
+              '', testElement.computeTitleForContentCategory(category));
+          assertNotEquals(
+              '', testElement.computeCategoryPrefName(category));
+          assertNotEquals(
+              '', testElement.computeCategoryExceptionsPrefName(category));
+
+          assertNotEquals(
+              '', testElement.computeCategoryDesc(category, true, true));
+          assertNotEquals(
+              '', testElement.computeCategoryDesc(category, true, false));
+          assertNotEquals(
+              '', testElement.computeCategoryDesc(category, false, true));
+          assertNotEquals(
+              '', testElement.computeCategoryDesc(category, false, false));
+        }
+      });
     });
   }