Adding MacBook Pro accelerometer support.

chrome/browser/device_orientation/provider.cc

Index: chrome/browser/device_orientation/provider.cc
diff --git a/chrome/browser/device_orientation/provider.cc b/chrome/browser/device_orientation/provider.cc
index d1d335b499c97e7577eb786dad69a926e19dce8e..0785acf8aa5d47ac0216a53bb83d72363e899d3e 100644
--- a/chrome/browser/device_orientation/provider.cc
+++ b/chrome/browser/device_orientation/provider.cc
@@ -6,6 +6,11 @@
 
 #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"
 
@@ -14,7 +19,12 @@ 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);
   }