Split IndexedDBFactory into virtual base + impl.

content/browser/indexed_db/indexed_db_backing_store_unittest.cc

Index: content/browser/indexed_db/indexed_db_backing_store_unittest.cc
diff --git a/content/browser/indexed_db/indexed_db_backing_store_unittest.cc b/content/browser/indexed_db/indexed_db_backing_store_unittest.cc
index bdbf077b573bbb799f857d069413a8e7947cdfa5..13061fcac7bb459914d506049542ae8d772b210c 100644
--- a/content/browser/indexed_db/indexed_db_backing_store_unittest.cc
+++ b/content/browser/indexed_db/indexed_db_backing_store_unittest.cc
@@ -14,6 +14,7 @@
 #include "base/task_runner.h"
 #include "base/test/test_simple_task_runner.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
+#include "content/browser/indexed_db/indexed_db_factory_impl.h"
 #include "content/browser/indexed_db/indexed_db_leveldb_coding.h"
 #include "content/browser/indexed_db/indexed_db_value.h"
 #include "content/public/test/mock_special_storage_policy.h"
@@ -162,10 +163,10 @@ class TestableIndexedDBBackingStore : public IndexedDBBackingStore {
   std::vector<int64> removals_;
 };
 
-class TestIDBFactory : public IndexedDBFactory {
+class TestIDBFactory : public IndexedDBFactoryImpl {
  public:
   TestIDBFactory(IndexedDBContextImpl* idb_context)
-      : IndexedDBFactory(idb_context) {}
+      : IndexedDBFactoryImpl(idb_context) {}
 
   scoped_refptr<TestableIndexedDBBackingStore> OpenBackingStoreForTest(
       const GURL& origin,