customtabs: Enable first contentful reporting.

chrome/android/javatests/src/org/chromium/chrome/browser/customtabs/CustomTabActivityTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/customtabs/CustomTabActivityTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/customtabs/CustomTabActivityTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/customtabs/CustomTabActivityTest.java
index 6f8fa1d257c50f88d4f81bdcc6e6b6588a5c6401..f9af63a3514859db30cd3c3775d7e2c1801f4727 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/customtabs/CustomTabActivityTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/customtabs/CustomTabActivityTest.java
@@ -827,10 +827,6 @@ public class CustomTabActivityTest extends CustomTabActivityTestBase {
     @SmallTest
     @RetryOnFailure
     public void testPageLoadMetricIsSent() {
-        Context context = getInstrumentation().getTargetContext().getApplicationContext();
-        CustomTabsConnection connection = CustomTabsConnection.getInstance((Application) context);
-        connection.enablePageLoadMetricsCallbacks();
-
         final AtomicReference<Long> firstContentfulPaintMs = new AtomicReference<>(-1L);
         CustomTabsCallback cb = new CustomTabsCallback() {
             @Override