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

mojo/dart/embedder/dart_controller.h

 // 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.
 
 #ifndef MOJO_DART_EMBEDDER_DART_CONTROLLER_H_
 #define MOJO_DART_EMBEDDER_DART_CONTROLLER_H_
 
 #include <unordered_set>
 
 #include "base/synchronization/lock.h"
-#include "dart/runtime/include/dart_api.h"
 #include "mojo/dart/embedder/mojo_dart_state.h"
 #include "mojo/public/c/system/types.h"
+#include "mojo/public/third_party/dart/runtime/include/dart_api.h"
 
 namespace tonic {
 class DartDependency;
 class DartLibraryLoader;
 }
 
 namespace mojo {
 namespace dart {
 
 struct DartControllerConfig {
@@ skipping 142 matching lines @@
   static bool initialized_;
   static bool strict_compilation_;
   static bool service_isolate_running_;
   static DartControllerServiceConnector* service_connector_;
 };
 
 }  // namespace dart
 }  // namespace mojo
 
 #endif  // MOJO_DART_EMBEDDER_DART_CONTROLLER_H_