Take 2: sync changes to support encryption

chrome/browser/sync/engine/update_applicator.h

Index: chrome/browser/sync/engine/update_applicator.h
diff --git a/chrome/browser/sync/engine/update_applicator.h b/chrome/browser/sync/engine/update_applicator.h
index 7073f0ae9e364827eff9c6c0eead9b7381e103b0..eb8b97cf9dc94aea89155e8b82fda535339ea518 100644
--- a/chrome/browser/sync/engine/update_applicator.h
+++ b/chrome/browser/sync/engine/update_applicator.h
@@ -27,6 +27,7 @@ class UpdateProgress;
 }
 
 class ConflictResolver;
+class Cryptographer;
 
 class UpdateApplicator {
  public:
@@ -34,6 +35,7 @@ class UpdateApplicator {
       UpdateIterator;
 
   UpdateApplicator(ConflictResolver* resolver,
+                   Cryptographer* cryptographer,
                    const UpdateIterator& begin,
                    const UpdateIterator& end,
                    const ModelSafeRoutingInfo& routes,
@@ -62,6 +64,9 @@ class UpdateApplicator {
   // Used to resolve conflicts when trying to apply updates.
   ConflictResolver* const resolver_;
 
+  // Used to decrypt sensitive sync nodes.
+  Cryptographer* cryptographer_;
+
   UpdateIterator const begin_;
   UpdateIterator end_;
   UpdateIterator pointer_;