clang-format existing code in statsd.

Added .clang-format, because there isn't an official .clang-format file for Android framework code.

before we upload changes, do:

clang-format -style=file -i [file list]

to format the files that you touched.

Test: formatting only. NO code changes.
Change-Id: I90e87f1ee6618da8ea9bc2221c609c415a4046a8
diff --git a/cmds/statsd/src/DropboxReader.h b/cmds/statsd/src/DropboxReader.h
index b7f8739..a5a28d9 100644
--- a/cmds/statsd/src/DropboxReader.h
+++ b/cmds/statsd/src/DropboxReader.h
@@ -40,13 +40,13 @@
     static bool parseFromGzipFile(const unique_fd& fd, StatsLogReport& logReport);
     static void printLog(FILE* out, const StatsLogReport& logReport);
     enum {
-      kCompressStored = 0,    // no compression
-      kCompressDeflated = 8,  // standard deflate
+        kCompressStored = 0,    // no compression
+        kCompressDeflated = 8,  // standard deflate
     };
 };
 
-} // namespace statsd
-} // namespace os
-} // namespace android
+}  // namespace statsd
+}  // namespace os
+}  // namespace android
 
-#endif //DROPBOX_READER_H
+#endif  // DROPBOX_READER_H