AAPT2

First checking of AAPT2. The individual phases of AAPT2 work, but there
are some missing pieces.

For early testing we are missing:
- Need to properly mark file references and include them in package
- Need to package into zip

Final AAPT for apps we are missing:
- Need to crush PNGs
- Need to parse 9-patches
- Need to validate all of AndroidManifest.xml
- Need to write align method to align resource tables for splits.

Final AAPT for apps + system we are missing:
- Need to handle overlays
- Need to store comments for R file
- Need to handle --shared-lib (dynamic references too).

New AAPT features coming:
- Need to import compiled libraries
    - Name mangling
    - R file generation for library code

Change-Id: I95f8a63581b81a1f424ae6fb2c373c883b72c18d
diff --git a/tools/aapt2/XliffXmlPullParser.cpp b/tools/aapt2/XliffXmlPullParser.cpp
new file mode 100644
index 0000000..f0950a3
--- /dev/null
+++ b/tools/aapt2/XliffXmlPullParser.cpp
@@ -0,0 +1,108 @@
+/*
+ * 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.
+ */
+
+#include "XliffXmlPullParser.h"
+
+#include <string>
+
+namespace aapt {
+
+XliffXmlPullParser::XliffXmlPullParser(const std::shared_ptr<XmlPullParser>& parser) :
+        mParser(parser) {
+}
+
+XmlPullParser::Event XliffXmlPullParser::next() {
+    while (XmlPullParser::isGoodEvent(mParser->next())) {
+        Event event = mParser->getEvent();
+        if (event != Event::kStartElement && event != Event::kEndElement) {
+            break;
+        }
+
+        if (mParser->getElementNamespace() !=
+                u"urn:oasis:names:tc:xliff:document:1.2") {
+            break;
+        }
+
+        const std::u16string& name = mParser->getElementName();
+        if (name != u"bpt"
+                && name != u"ept"
+                && name != u"it"
+                && name != u"ph"
+                && name != u"g"
+                && name != u"bx"
+                && name != u"ex"
+                && name != u"x") {
+            break;
+        }
+
+        // We hit a tag that was ignored, so get the next event.
+    }
+    return mParser->getEvent();
+}
+
+XmlPullParser::Event XliffXmlPullParser::getEvent() const {
+    return mParser->getEvent();
+}
+
+const std::string& XliffXmlPullParser::getLastError() const {
+    return mParser->getLastError();
+}
+
+const std::u16string& XliffXmlPullParser::getComment() const {
+    return mParser->getComment();
+}
+
+size_t XliffXmlPullParser::getLineNumber() const {
+    return mParser->getLineNumber();
+}
+
+size_t XliffXmlPullParser::getDepth() const {
+    return mParser->getDepth();
+}
+
+const std::u16string& XliffXmlPullParser::getText() const {
+    return mParser->getText();
+}
+
+const std::u16string& XliffXmlPullParser::getNamespacePrefix() const {
+    return mParser->getNamespacePrefix();
+}
+
+const std::u16string& XliffXmlPullParser::getNamespaceUri() const {
+    return mParser->getNamespaceUri();
+}
+
+const std::u16string& XliffXmlPullParser::getElementNamespace() const {
+    return mParser->getElementNamespace();
+}
+
+const std::u16string& XliffXmlPullParser::getElementName() const {
+    return mParser->getElementName();
+}
+
+size_t XliffXmlPullParser::getAttributeCount() const {
+    return mParser->getAttributeCount();
+}
+
+XmlPullParser::const_iterator XliffXmlPullParser::beginAttributes() const {
+    return mParser->beginAttributes();
+}
+
+XmlPullParser::const_iterator XliffXmlPullParser::endAttributes() const {
+    return mParser->endAttributes();
+}
+
+} // namespace aapt