Bug 742120 - History records incorrectly reconciled by title + URI, not just URI. r=nalexander

mobile/android/base/sync/repositories/android/AndroidBrowserHistoryRepositorySession.java

@@ -56,7 +56,7 @@ public class AndroidBrowserHistoryRepositorySession extends AndroidBrowserReposi
   @Override
   protected String buildRecordString(Record record) {
     HistoryRecord hist = (HistoryRecord) record;
-    return hist.title + hist.histURI;
+    return hist.histURI;
   }
 
   @Override

mobile/android/base/sync/repositories/domain/HistoryRecord.java

@@ -98,7 +98,8 @@ public class HistoryRecord extends Record {
 
   /**
    * We consider two history records to be congruent if they represent the
-   * same history record regardless of visits.
+   * same history record regardless of visits. Titles are allowed to differ,
+   * but the URI must be the same.
    */
   @Override
   public boolean congruentWith(Object o) {
@@ -109,8 +110,7 @@ public class HistoryRecord extends Record {
     if (!super.congruentWith(other)) {
       return false;
     }
-    return RepoUtils.stringsEqual(this.title, other.title) &&
-           RepoUtils.stringsEqual(this.histURI, other.histURI);
+    return RepoUtils.stringsEqual(this.histURI, other.histURI);
   }
 
   @Override