Aura on Android: Stub implementation of UsbPrinterManifestHandler.

extensions/common/api/printer_provider/usb_printer_manifest_handler_android.cc

Index: extensions/common/api/printer_provider/usb_printer_manifest_handler_android.cc
diff --git a/extensions/common/api/printer_provider/usb_printer_manifest_handler.cc b/extensions/common/api/printer_provider/usb_printer_manifest_handler_android.cc
similarity index 55%
copy from extensions/common/api/printer_provider/usb_printer_manifest_handler.cc
copy to extensions/common/api/printer_provider/usb_printer_manifest_handler_android.cc
index e356050b7e116491badda09cbf2b7022029ed061..88861c4b74141d565c6d684dfe98c8297cff2f78 100644
--- a/extensions/common/api/printer_provider/usb_printer_manifest_handler.cc
+++ b/extensions/common/api/printer_provider/usb_printer_manifest_handler_android.cc
@@ -4,9 +4,7 @@
 
 #include "extensions/common/api/printer_provider/usb_printer_manifest_handler.h"
 
-#include "extensions/common/api/printer_provider/usb_printer_manifest_data.h"
 #include "extensions/common/extension.h"
-#include "extensions/common/manifest_constants.h"
 
 namespace extensions {
 
@@ -18,20 +16,11 @@ UsbPrinterManifestHandler::~UsbPrinterManifestHandler() {
 
 bool UsbPrinterManifestHandler::Parse(Extension* extension,
                                       base::string16* error) {
-  const base::Value* usb_printers = nullptr;
-  CHECK(extension->manifest()->Get(manifest_keys::kUsbPrinters, &usb_printers));
-  scoped_ptr<UsbPrinterManifestData> data =
-      UsbPrinterManifestData::FromValue(*usb_printers, error);
-  if (!data) {
-    return false;
-  }
-
-  extension->SetManifestData(manifest_keys::kUsbPrinters, data.release());
-  return true;
+  return false;
 }
 
 const std::vector<std::string> UsbPrinterManifestHandler::Keys() const {
-  return SingleKey(manifest_keys::kUsbPrinters);
+  return std::vector<std::string>();
 }
 
 }  // namespace extensions