predictors: Expose the initialization call to Android.

chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabsConnection.java

Index: chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabsConnection.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabsConnection.java b/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabsConnection.java
index f2694e7627cb265a30ad6f42815e97692579968c..e2396be8bb914d8802eb3450e4d733b7899bc8d1 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabsConnection.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabsConnection.java
@@ -246,6 +246,9 @@ public class CustomTabsConnection {
                     // violation on the first access. Make sure that this access is not in
                     // mayLauchUrl.
                     RequestThrottler.getForUid(mApplication, uid);
+
+                    Profile profile = Profile.getLastUsedProfile();
+                    new ResourcePrefetchPredictor(profile).startInitialization();
                 }
                 mWarmupHasBeenFinished.set(true);
             }