AAPT2: Separate out the various steps

An early refactor. Some ideas became clearer as
development continued. Now the various phases are much
clearer and more easily reusable.

Also added a ton of tests!

Change-Id: Ic8f0a70c8222370352e63533b329c40457c0903e
diff --git a/tools/aapt2/flatten/TableFlattener.h b/tools/aapt2/flatten/TableFlattener.h
new file mode 100644
index 0000000..901b129
--- /dev/null
+++ b/tools/aapt2/flatten/TableFlattener.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAPT_FLATTEN_TABLEFLATTENER_H
+#define AAPT_FLATTEN_TABLEFLATTENER_H
+
+#include "process/IResourceTableConsumer.h"
+
+namespace aapt {
+
+class BigBuffer;
+class ResourceTable;
+
+struct TableFlattenerOptions {
+    /**
+     * Specifies whether to output extended chunks, like
+     * source information and missing symbol entries. Default
+     * is false.
+     *
+     * Set this to true when emitting intermediate resource table.
+     */
+    bool useExtendedChunks = false;
+};
+
+class TableFlattener : public IResourceTableConsumer {
+public:
+    TableFlattener(BigBuffer* buffer, TableFlattenerOptions options) :
+            mBuffer(buffer), mOptions(options) {
+    }
+
+    bool consume(IAaptContext* context, ResourceTable* table) override;
+
+private:
+    BigBuffer* mBuffer;
+    TableFlattenerOptions mOptions;
+};
+
+} // namespace aapt
+
+#endif /* AAPT_FLATTEN_TABLEFLATTENER_H */