[Sync] Move //components/sync to the syncer namespace.

components/sync/driver/invalidation_adapter.cc

Index: components/sync/driver/invalidation_adapter.cc
diff --git a/components/sync/driver/invalidation_adapter.cc b/components/sync/driver/invalidation_adapter.cc
index 15b4db2c3498b7dd8789761d4fc0fa5c884875ab..8e9226f0c0d38eb3af5330a5c4150a8b041dcd0e 100644
--- a/components/sync/driver/invalidation_adapter.cc
+++ b/components/sync/driver/invalidation_adapter.cc
@@ -4,10 +4,9 @@
 
 #include "components/sync/driver/invalidation_adapter.h"
 
-namespace browser_sync {
+namespace syncer {
 
-InvalidationAdapter::InvalidationAdapter(
-    const syncer::Invalidation& invalidation)
+InvalidationAdapter::InvalidationAdapter(const Invalidation& invalidation)
     : invalidation_(invalidation) {}
 
 InvalidationAdapter::~InvalidationAdapter() {}
@@ -32,4 +31,4 @@ void InvalidationAdapter::Drop() {
   invalidation_.Drop();
 }
 
-}  // namespace browser_sync
+}  // namespace syncer