[Android] Omnibox Placeholder Experiment

chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java
index eb5eaa25391250900ac039512b36c438743c0f43..23e88f2e1c0bace6cfd2900552d52fdecb612f09 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java
@@ -58,6 +58,8 @@ public class ChromePreferenceManager {
     private static final String SUCCESS_UPLOAD_SUFFIX = "_crash_success_upload";
     private static final String FAILURE_UPLOAD_SUFFIX = "_crash_failure_upload";
 
+    private static final String OMNIBOX_PLACEHOLDER_KEY = "omnibox-placeholder";

[mdjones, 2017/05/30 17:34:08]

nit: omnibox-placeholder-group

[huayinz, 2017/05/30 18:19:26]

Done.

+
     private static ChromePreferenceManager sPrefs;
 
     private final SharedPreferences mSharedPreferences;
@@ -419,6 +421,22 @@ public class ChromePreferenceManager {
     }
 
     /**
+     * Set group of omnibox placeholder experiment
+     * @param hint Hint text to show on url bar
+     */
+    public void setOmniboxPlaceholder(String hint) {
+        writeString(OMNIBOX_PLACEHOLDER_KEY, hint);
+    }
+
+    /**
+     * Get group of omnibox placeholder experiment
+     * @return String of omnibox placeholder experiment group name, null if not set
+     */
+    public String getOmniboxPlaceholder() {
+        return mSharedPreferences.getString(OMNIBOX_PLACEHOLDER_KEY, null);
+    }
+
+    /**
      * Writes the given int value to the named shared preference.
      * @param key The name of the preference to modify.
      * @param value The new value for the preference.