Add flag to enable rendering of text using signed distance fields.

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 3f0db3e9de32373b5ae67c3a9f02ff6b6387da1f..22ce5ebeba2f6935fa7c43c9e7055083fb17a370 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -203,6 +203,14 @@ const Experiment::Choice kLCDTextChoices[] = {
   { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED, switches::kDisableLCDText, ""}
 };
 
+const Experiment::Choice kDistanceFieldTextChoices[] = {
+  { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
+  { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
+    switches::kEnableDistanceFieldText, "" },
+  { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
+    switches::kDisableDistanceFieldText, "" }
+};
+
 #ifndef USE_AURA
 const Experiment::Choice kDelegatedRendererChoices[] = {
   { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
@@ -1850,6 +1858,13 @@ const Experiment kExperiments[] = {
     SINGLE_VALUE_TYPE(switches::kEnableAppInstallAlerts)
   },
 #endif
+  {
+    "distance-field-text",
+    IDS_FLAGS_DISTANCE_FIELD_TEXT_NAME,
+    IDS_FLAGS_DISTANCE_FIELD_TEXT_DESCRIPTION,
+    kOsAll,
+    MULTI_VALUE_TYPE(kDistanceFieldTextChoices)
+  },
 };
 
 const Experiment* experiments = kExperiments;