Adding MacBook Pro accelerometer support.

chrome/browser/device_orientation/provider.cc

 // Copyright (c) 2010 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 "chrome/browser/device_orientation/provider.h"
 
 #include "base/logging.h"
 #include "chrome/browser/chrome_thread.h"
+
+#if defined(OS_MACOSX)
+#include "chrome/browser/device_orientation/accelerometer_mac.h"
+#endif
+
 #include "chrome/browser/device_orientation/data_fetcher.h"
 #include "chrome/browser/device_orientation/provider_impl.h"
 
 namespace device_orientation {
 
 Provider* Provider::GetInstance() {
   if (!instance_) {
     DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
-    const ProviderImpl::DataFetcherFactory default_factories[] = { NULL };
+    const ProviderImpl::DataFetcherFactory default_factories[] = {
+#if defined(OS_MACOSX)
+      AccelerometerMac::Create,
+#endif
+      NULL
+    };
 
     instance_ = new ProviderImpl(MessageLoop::current(), default_factories);
   }
   return instance_;
 }
 
 void Provider::SetInstanceForTests(Provider* provider) {
   DCHECK(!instance_);
   instance_ = provider;
 }
 
 Provider* Provider::instance_ = NULL;
 
 } //  namespace device_orientation