Rename PPB_Flash_DeviceID interface to PPB_Flash_DRM

ppapi/cpp/private/flash_device_id.h

Index: ppapi/cpp/private/flash_device_id.h
diff --git a/ppapi/cpp/private/flash_device_id.h b/ppapi/cpp/private/flash_device_id.h
deleted file mode 100644
index 33c5e55652f17f1dfa6c93327f955d4d4913a759..0000000000000000000000000000000000000000
--- a/ppapi/cpp/private/flash_device_id.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012 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.
-
-#ifndef PPAPI_CPP_PRIVATE_FLASH_DEVICE_ID_H_
-#define PPAPI_CPP_PRIVATE_FLASH_DEVICE_ID_H_
-
-#include "ppapi/cpp/completion_callback.h"
-#include "ppapi/cpp/resource.h"
-
-namespace pp {
-namespace flash {
-
-class DeviceID : public Resource {
- public:
-  DeviceID();
-  DeviceID(const InstanceHandle& instance);
-
-  // On success, returns a string var.
-  int32_t GetDeviceID(const CompletionCallbackWithOutput<Var>& callback);
-};
-
-}  // namespace flash
-}  // namespace pp
-
-#endif  // PPAPI_CPP_PRIVATE_FLASH_DEVICE_ID_H_