Auto-formatted all .mojom files.

mojo/dart/unittests/embedder_tester/dart_to_cpp.mojom

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 [DartPackage="_mojo_for_test_only"]
 module dart_to_cpp;
 
 // This struct encompasses all of the basic types, so that they
 // may be sent from C++ to Dart and back for validation.
 struct EchoArgs {
   int64 si64;
   int32 si32;
   int16 si16;
-  int8  si8;
+  int8 si8;
   uint64 ui64;
   uint32 ui32;
   uint16 ui16;
-  uint8  ui8;
+  uint8 ui8;
   float float_val;
   float float_inf;
   float float_nan;
   double double_val;
   double double_inf;
   double double_nan;
   string? name;
   array<string>? string_array;
   handle<message_pipe>? message_handle;
   handle<data_pipe_consumer>? data_handle;
@@ skipping 16 matching lines @@
   // Responses from specific tests.
   PingResponse();
   EchoResponse(EchoArgsList list);
 };
 
 interface DartSide {
   SetClient(CppSide cppSide);
   Ping();
   Echo(int32 numIterations, EchoArgs arg);
 };