Add chrome://flags entry for MojoLoading

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 11fb3001c8ea30308ff68e5643d589ef4bdc465a..877cbacf3541683865048c6971fd7afc880c208a 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2353,7 +2353,7 @@ const FeatureEntry kFeatureEntries[] = {
 #if defined(OS_MACOSX)
     {"tab-strip-keyboard-focus", IDS_FLAGS_TAB_STRIP_KEYBOARD_FOCUS_NAME,
      IDS_FLAGS_TAB_STRIP_KEYBOARD_FOCUS_DESCRIPTION, kOsMac,
-     FEATURE_VALUE_TYPE(features::kTabStripKeyboardFocus)}
+     FEATURE_VALUE_TYPE(features::kTabStripKeyboardFocus)},
 #endif
 
 #if defined(OS_CHROMEOS)
@@ -2363,6 +2363,10 @@ const FeatureEntry kFeatureEntries[] = {
      SINGLE_VALUE_TYPE(chromeos::switches::kEnableChromeVoxArcSupport)},
 #endif  // defined(OS_CHROMEOS)
 
+    {"enable-mojo-loading", IDS_FLAGS_MOJO_LOADING_NAME,
+     IDS_FLAGS_MOJO_LOADING_DESCRIPTION, kOsAll,
+     FEATURE_VALUE_TYPE(features::kLoadingWithMojo)},
+
     // NOTE: Adding new command-line switches requires adding corresponding
     // entries to enum "LoginCustomFlags" in histograms.xml. See note in
     // histograms.xml and don't forget to run AboutFlagsHistogramTest unit test.