Stop running pub get at gclient sync time and fix build bugs

mojo/dart/embedder/builtin_natives.cc

 // 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.
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/rand_util.h"
-#include "dart/runtime/include/dart_api.h"
 #include "mojo/dart/embedder/builtin.h"
 #include "mojo/dart/embedder/mojo_natives.h"
+#include "mojo/public/third_party/dart/runtime/include/dart_api.h"
 
 #if defined(OS_ANDROID)
 #include <android/log.h>
 #endif
 
 namespace mojo {
 namespace dart {
 
 // Lists the native functions implementing basic functionality in
 // the Mojo embedder dart, such as printing, and file I/O.
@@ skipping 102 matching lines @@
     Dart_Handle error = Dart_NewStringFromCString(
         "Failed to allocate storage.");
     Dart_ThrowException(error);
   }
   Dart_ListSetAsBytes(result, 0, buffer.get(), count);
   Dart_SetReturnValue(args, result);
 }
 
 }  // namespace bin
 }  // namespace dart