Register sync session ID in SyncController.

chrome/android/java/src/org/chromium/chrome/browser/sync/SyncController.java

Index: chrome/android/java/src/org/chromium/chrome/browser/sync/SyncController.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/sync/SyncController.java b/chrome/android/java/src/org/chromium/chrome/browser/sync/SyncController.java
index e87d454488d9172630e3bedac1a3836d6d45bb2c..1dec363ec8bd06257a78f3d2d9c59e490d9729a3 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/sync/SyncController.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/sync/SyncController.java
@@ -10,6 +10,7 @@ import android.content.Context;
 import android.util.Log;
 
 import org.chromium.base.ThreadUtils;
+import org.chromium.chrome.browser.identity.UniqueIdentificationGeneratorFactory;
 import org.chromium.chrome.browser.invalidation.InvalidationController;
 import org.chromium.chrome.browser.signin.SigninManager;
 import org.chromium.chrome.browser.signin.SigninManager.SignInFlowObserver;
@@ -60,6 +61,10 @@ public class SyncController implements ProfileSyncService.SyncStateChangedListen
         mProfileSyncService = ProfileSyncService.get(mContext);
         mProfileSyncService.addSyncStateChangedListener(this);
         mChromeSigninController.ensureGcmIsInitialized();
+        // Since we do not override the UniqueIdentificationGenerator, we get it from the factory,

[nyquist, 2015/03/04 09:15:13]

Do not use pronouns in comments.

[maxbogue, 2015/03/04 18:40:48]

Hmm, that comment didn't really make sense anymore anyways so I re-wrote it.

+        // instead of using the instance we just created.
+        mProfileSyncService.setSessionsId(
+                UniqueIdentificationGeneratorFactory.getInstance(GENERATOR_ID));
     }
 
     /**