Refactors DeviceOrientation to make it more extensible

content/browser/device_orientation/data_fetcher_impl_android.cc

Index: content/browser/device_orientation/data_fetcher_impl_android.cc
diff --git a/content/browser/device_orientation/data_fetcher_impl_android.cc b/content/browser/device_orientation/data_fetcher_impl_android.cc
index 03546359ae0fe8ff3e2f8638307f33d9f3408165..395432247bad04504dd82a3670e056138fbc9f8b 100644
--- a/content/browser/device_orientation/data_fetcher_impl_android.cc
+++ b/content/browser/device_orientation/data_fetcher_impl_android.cc
@@ -8,6 +8,7 @@
 #include "base/android/scoped_java_ref.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
+#include "content/browser/device_orientation/device_data.h"
 #include "content/browser/device_orientation/orientation.h"
 #include "jni/device_orientation_jni.h"
 
@@ -54,6 +55,15 @@ DataFetcherImplAndroid::~DataFetcherImplAndroid() {
   Stop();
 }
 
+bool DataFetcherImplAndroid::GetDeviceData(DeviceData* device_data) {
+  switch (device_data->device_data_type()) {
+    case DeviceData::kDeviceOrientationData:
+      return GetOrientation(static_cast<Orientation*>(device_data));
+    default:
+      return false;
+  }
+}
+
 bool DataFetcherImplAndroid::GetOrientation(Orientation* orientation) {
   // Do we have a new orientation value? (It's safe to do this outside the lock
   // because we only skip the lock if the value is null. We always enter the