Revert "Move frameworks/base/tools/ to frameworks/tools/"

This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.
diff --git a/tools/aidl/options.h b/tools/aidl/options.h
new file mode 100644
index 0000000..387e37d
--- /dev/null
+++ b/tools/aidl/options.h
@@ -0,0 +1,36 @@
+#ifndef DEVICE_TOOLS_AIDL_H
+#define DEVICE_TOOLS_AIDL_H
+
+#include <string.h>
+#include <string>
+#include <vector>
+
+using namespace std;
+
+enum {
+    COMPILE_AIDL,
+    PREPROCESS_AIDL
+};
+
+// This struct is the parsed version of the command line options
+struct Options
+{
+    int task;
+    bool failOnParcelable;
+    vector<string> importPaths;
+    vector<string> preprocessedFiles;
+    string inputFileName;
+    string outputFileName;
+    string outputBaseFolder;
+    string depFileName;
+    bool autoDepFile;
+
+    vector<string> filesToPreprocess;
+};
+
+// takes the inputs from the command line and fills in the Options struct
+// Returns 0 on success, and nonzero on failure.
+// It also prints the usage statement on failure.
+int parse_options(int argc, const char* const* argv, Options *options);
+
+#endif // DEVICE_TOOLS_AIDL_H