Use Google3 style guide with .clang-format

Test: style change only, builds ok
Change-Id: I885180e24cb2e7b58cfb4967c3bcb40058ce4078
diff --git a/tools/aapt2/java/ManifestClassGenerator.h b/tools/aapt2/java/ManifestClassGenerator.h
index f565289..1817648 100644
--- a/tools/aapt2/java/ManifestClassGenerator.h
+++ b/tools/aapt2/java/ManifestClassGenerator.h
@@ -26,8 +26,9 @@
 
 namespace aapt {
 
-std::unique_ptr<ClassDefinition> generateManifestClass(IDiagnostics* diag, xml::XmlResource* res);
+std::unique_ptr<ClassDefinition> generateManifestClass(IDiagnostics* diag,
+                                                       xml::XmlResource* res);
 
-} // namespace aapt
+}  // namespace aapt
 
 #endif /* AAPT_JAVA_MANIFESTCLASSGENERATOR_H */