[Sync] Initial support for encrypting any datatype (no UI hookup yet).

chrome/browser/sync/syncable/syncable.cc

Index: chrome/browser/sync/syncable/syncable.cc
diff --git a/chrome/browser/sync/syncable/syncable.cc b/chrome/browser/sync/syncable/syncable.cc
index ac66083cc5f61a3b56fd3cb00697d9e30b78143e..c3e587c0e49151cc0b46309316c537d07c1c56b6 100644
--- a/chrome/browser/sync/syncable/syncable.cc
+++ b/chrome/browser/sync/syncable/syncable.cc
@@ -38,10 +38,6 @@
 #include "base/time.h"
 #include "chrome/browser/sync/engine/syncer.h"
 #include "chrome/browser/sync/engine/syncer_util.h"
-#include "chrome/browser/sync/protocol/autofill_specifics.pb.h"
-#include "chrome/browser/sync/protocol/bookmark_specifics.pb.h"
-#include "chrome/browser/sync/protocol/password_specifics.pb.h"
-#include "chrome/browser/sync/protocol/preference_specifics.pb.h"
 #include "chrome/browser/sync/protocol/service_constants.h"
 #include "chrome/browser/sync/protocol/theme_specifics.pb.h"
 #include "chrome/browser/sync/protocol/typed_url_specifics.pb.h"
@@ -278,6 +274,12 @@ DirectoryBackingStore* Directory::CreateBackingStore(
   return new DirectoryBackingStore(dir_name, backing_filepath);
 }
 
+void Directory::SetEncryptedDataTypes(const ModelTypeSet& encrypted_types) {
+  // Sanity check, passwords should always be encrypted.
+  DCHECK(encrypted_types.count(syncable::PASSWORDS) > 0);
+  kernel_->encrypted_datatypes = encrypted_types;
+}
+
 DirOpenResult Directory::OpenImpl(const FilePath& file_path,
                                   const string& name) {
   DCHECK_EQ(static_cast<DirectoryBackingStore*>(NULL), store_);
@@ -1103,6 +1105,11 @@ BaseTransaction::BaseTransaction(Directory* directory)
 
 BaseTransaction::~BaseTransaction() {}
 
+void BaseTransaction::SetEncryptedDataTypes(
+    const ModelTypeSet& encrypted_types) {
+  directory()->SetEncryptedDataTypes(encrypted_types);
+}
+
 void BaseTransaction::UnlockAndLog(OriginalEntries* originals_arg) {
   // Triggers the CALCULATE_CHANGES and TRANSACTION_ENDING events while
   // holding dir_kernel_'s transaction_mutex and changes_channel mutex.