Instant Apps: Change the name of the metric.

chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java

Index: chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
index 52d63fb9a4b6854b7c5d0ddae5cb350c903d2c16..97775eb96778f38042f95fa7e62ec8dabed77a18 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
@@ -75,7 +75,7 @@ public class InstantAppsHandler {
 
     /** A histogram to record how long the GMS Core API call took. */
     private static final TimesHistogramSample sInstantAppsApiCallTimes = new TimesHistogramSample(
-            "Android.InstantApps.ApiCallDuration", TimeUnit.MILLISECONDS);
+            "Android.InstantApps.ApiCallDuration2", TimeUnit.MILLISECONDS);
 
     /** @return The singleton instance of {@link InstantAppsHandler}. */
     public static InstantAppsHandler getInstance() {