[Android] Omnibox Placeholder Experiment

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 8559ba21531e92b7a2f2a2ec65c164480153549c..8326bb773bafe2c75d2edb2ae2c00e164f9791f2 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -667,6 +667,28 @@ const FeatureEntry::Choice kHerbPrototypeChoices[] = {
 };
 #endif  // OS_ANDROID
 
+#if defined(OS_ANDROID)
+const FeatureEntry::Choice kOmniboxPlaceholderExperimentChoices[] = {
+    {flags_ui::kGenericExperimentChoiceDefault, "", ""},
+    {flag_descriptions::kOmniboxPlaceholderExperimentSearchOrTypeUrl,
+     switches::kOmniboxPlaceholderExperimentSwitch, "SearchOrTypeUrl"},
+    {flag_descriptions::kOmniboxPlaceholderExperimentSearchOrTypeWebsiteName,
+     switches::kOmniboxPlaceholderExperimentSwitch, "SearchOrTypeWebsiteName"},
+    {flag_descriptions::kOmniboxPlaceholderExperimentSearchTheWeb,
+     switches::kOmniboxPlaceholderExperimentSwitch, "SearchTheWeb"},
+    {flag_descriptions::kOmniboxPlaceholderExperimentEnterASearchOrWebsite,
+     switches::kOmniboxPlaceholderExperimentSwitch, "EnterASearchOrWebsite"},
+    {flag_descriptions::kOmniboxPlaceholderExperimentSearchNews,
+     switches::kOmniboxPlaceholderExperimentSwitch, "SearchNews"},
+    {flag_descriptions::kOmniboxPlaceholderExperimentSearchRecipes,
+     switches::kOmniboxPlaceholderExperimentSwitch, "SearchRecipes"},
+    {flag_descriptions::kOmniboxPlaceholderExperimentSearchWeather,
+     switches::kOmniboxPlaceholderExperimentSwitch, "SearchWeather"},
+    {flag_descriptions::kOmniboxPlaceholderExperimentBlank,
+     switches::kOmniboxPlaceholderExperimentSwitch, "Blank"},
+};
+#endif  // OS_ANDROID
+
 const FeatureEntry::Choice kEnableUseZoomForDSFChoices[] = {
     {flag_descriptions::kEnableUseZoomForDsfChoiceDefault, "", ""},
     {flag_descriptions::kEnableUseZoomForDsfChoiceEnabled,
@@ -2154,6 +2176,12 @@ const FeatureEntry kFeatureEntries[] = {
      flag_descriptions::kHerbPrototypeChoicesDescription, kOsAndroid,
      MULTI_VALUE_TYPE(kHerbPrototypeChoices)},
 #endif  // OS_ANDROID
+#if defined(OS_ANDROID)
+    {"omnibox-placeholder-experiment",
+     flag_descriptions::kOmniboxPlaceholderExperimentName,
+     flag_descriptions::kOmniboxPlaceholderExperimentDescription, kOsAndroid,
+     MULTI_VALUE_TYPE(kOmniboxPlaceholderExperimentChoices)},
+#endif  // OS_ANDROID
     {"enable-md-bookmarks",
      flag_descriptions::kEnableMaterialDesignBookmarksName,
      flag_descriptions::kEnableMaterialDesignBookmarksDescription, kOsDesktop,