Expose Android sensors to via Mojo services

sky/engine/core/script/dart_controller.cc

 // Copyright 2015 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 "sky/engine/config.h"
 #include "sky/engine/core/script/dart_controller.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 136 matching lines @@
   if (!Dart_IsFunction(entry))
     return;
 
   Dart_Handle args[] = {
     ToDart(script),
   };
   DartInvokeAppField(library, ToDart(name), arraysize(args), args);
 }
 
 static void UnhandledExceptionCallback(Dart_Handle error) {
-  DCHECK(!Dart_IsError(error));
   LOG(ERROR) << Dart_GetError(error);
 }
 
 static Dart_Handle LibraryTagHandler(Dart_LibraryTag tag,
                                      Dart_Handle library,
                                      Dart_Handle url) {
   return DartLoader::HandleLibraryTag(tag, library, url);
 }
 
 static void IsolateShutdownCallback(void* callback_data) {
@@ skipping 133 matching lines @@
 
   CHECK(Dart_SetVMFlags(argc, argv));
   CHECK(Dart_Initialize(IsolateCreateCallback,
                         nullptr,  // Isolate interrupt callback.
                         UnhandledExceptionCallback, IsolateShutdownCallback,
                         // File IO callbacks.
                         nullptr, nullptr, nullptr, nullptr, nullptr));
 }
 
 } // namespace blink