NOT FOR REVIEW: Aura on Android

chrome/browser/media_galleries/fileapi/mtp_device_map_service.cc

Index: chrome/browser/media_galleries/fileapi/mtp_device_map_service.cc
diff --git a/chrome/browser/media_galleries/fileapi/mtp_device_map_service.cc b/chrome/browser/media_galleries/fileapi/mtp_device_map_service.cc
index 6941878f69c33e8a1711cfa7292fb9c98103a952..16d8f5763b51784192351df261505ac9d87b8443 100644
--- a/chrome/browser/media_galleries/fileapi/mtp_device_map_service.cc
+++ b/chrome/browser/media_galleries/fileapi/mtp_device_map_service.cc
@@ -28,6 +28,10 @@ void MTPDeviceMapService::RegisterMTPFileSystem(
     const base::FilePath::StringType& device_location,
     const std::string& filesystem_id,
     const bool read_only) {
+#if defined(OS_ANDROID)
+  // No CreateMTPDeviceAsyncDelegate implementation
+  NOTIMPLEMENTED();
+#else
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   DCHECK(!device_location.empty());
   DCHECK(!filesystem_id.empty());
@@ -46,10 +50,15 @@ void MTPDeviceMapService::RegisterMTPFileSystem(
 
   mtp_device_usage_map_[key]++;
   mtp_device_map_[filesystem_id] = make_pair(device_location, read_only);
+#endif
 }
 
 void MTPDeviceMapService::RevokeMTPFileSystem(
     const std::string& filesystem_id) {
+#if defined(OS_ANDROID)
+  // No RemoveAsyncDelegate implementation
+  NOTIMPLEMENTED();
+#else
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   DCHECK(!filesystem_id.empty());
 
@@ -71,6 +80,7 @@ void MTPDeviceMapService::RevokeMTPFileSystem(
       RemoveAsyncDelegate(device_location, read_only);
     }
   }
+#endif
 }
 
 void MTPDeviceMapService::AddAsyncDelegate(