CL for readability review.

chrome/browser/extensions/extension_font_settings_apitest.cc

Index: chrome/browser/extensions/extension_font_settings_apitest.cc
diff --git a/chrome/browser/extensions/extension_font_settings_apitest.cc b/chrome/browser/extensions/extension_font_settings_apitest.cc
index 06f2d02585e6c89c3e1ca402b6ccff0953e1c22e..3cf36a91cb077b9adec1bf81793e03d8c34b5a5c 100644
--- a/chrome/browser/extensions/extension_font_settings_apitest.cc
+++ b/chrome/browser/extensions/extension_font_settings_apitest.cc
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// Font Settings Extension API browser tests.
+
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
@@ -9,6 +11,7 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 
+// Test of extension API on a standard profile.
 IN_PROC_BROWSER_TEST_F(ExtensionApiTest, FontSettings) {
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kEnableExperimentalExtensionApis);
@@ -24,6 +27,7 @@ IN_PROC_BROWSER_TEST_F(ExtensionApiTest, FontSettings) {
   EXPECT_TRUE(RunExtensionTest("font_settings/standard")) << message_;
 }
 
+// Test of extension API in incognito split mode.
 IN_PROC_BROWSER_TEST_F(ExtensionApiTest, FontSettingsIncognito) {
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kEnableExperimentalExtensionApis);