New UMA settings fragment using Android prefs.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
index d336d844287be3e034ac059142069e5c25009808..80b57974104b94adf4e75520c5867c2faeed0038 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
@@ -863,6 +863,28 @@ public final class PrefServiceBridge {
             int contentSettingsType, List<ContentSettingException> list);
     public native void nativeSetContentSettingForPattern(
             int contentSettingType, String pattern, int setting);
+
+    /**
+      * @return whether Metrics reporting is enabled.
+      */
+    public boolean isMetricsReportingEnabled() {
+        return nativeGetMetricsReportingEnabled();
+    }
+
+    /**
+     * Sets whether the metrics reporting should be enabled.
+     */
+    public void setMetricsReportingEnabled(boolean enabled) {
+        nativeSetMetricsReportingEnabled(enabled);
+    }
+
+    /**
+     * @return whether the metrics reporting preference has been set by user.
+     */
+    public boolean hasSetMetricsReporting() {
+        return nativeHasSetMetricsReporting();
+    }
+
     private native boolean nativeGetAcceptCookiesEnabled();
     private native boolean nativeGetAcceptCookiesManaged();
     private native boolean nativeGetBlockThirdPartyCookiesEnabled();
@@ -945,4 +967,7 @@ public final class PrefServiceBridge {
     private native String nativeGetSupervisedUserSecondCustodianName();
     private native String nativeGetSupervisedUserSecondCustodianEmail();
     private native String nativeGetSupervisedUserSecondCustodianProfileImageURL();
+    private native boolean nativeGetMetricsReportingEnabled();
+    private native void nativeSetMetricsReportingEnabled(boolean enabled);
+    private native boolean nativeHasSetMetricsReporting();
 }