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

This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.
diff --git a/tools/aapt/ResourceIdCache.h b/tools/aapt/ResourceIdCache.h
new file mode 100644
index 0000000..65f7781
--- /dev/null
+++ b/tools/aapt/ResourceIdCache.h
@@ -0,0 +1,30 @@
+//
+// Copyright 2012 The Android Open Source Project
+//
+// Manage a resource ID cache.
+
+#ifndef RESOURCE_ID_CACHE_H
+#define RESOURCE_ID_CACHE_H
+
+namespace android {
+class android::String16;
+
+class ResourceIdCache {
+public:
+    static uint32_t lookup(const android::String16& package,
+            const android::String16& type,
+            const android::String16& name,
+            bool onlyPublic);
+
+    static uint32_t store(const android::String16& package,
+            const android::String16& type,
+            const android::String16& name,
+            bool onlyPublic,
+            uint32_t resId);
+
+    static void dump(void);
+};
+
+}
+
+#endif