Rename PPB_Flash_DeviceID interface to PPB_Flash_DRM

ppapi/api/private/ppb_flash_drm.idl

Index: ppapi/api/private/ppb_flash_drm.idl
diff --git a/ppapi/api/private/ppb_flash_device_id.idl b/ppapi/api/private/ppb_flash_drm.idl
similarity index 64%
copy from ppapi/api/private/ppb_flash_device_id.idl
copy to ppapi/api/private/ppb_flash_drm.idl
index 1fa49865bfcb179c96daeaf3f95181b25362238c..84381143b13a267a96ec4506d3d0fed0463bed33 100644
--- a/ppapi/api/private/ppb_flash_device_id.idl
+++ b/ppapi/api/private/ppb_flash_drm.idl
@@ -4,16 +4,23 @@
  */
 
 /**
- * This file contains the <code>PPB_Flash_DeviceID</code> interface.
+ * This file contains the <code>PPB_Flash_DRM</code> interface.
  */
 
 [generate_thunk]
 
 label Chrome {
-  M21 = 1.0
+  M29 = 1.0
 };
 
-interface PPB_Flash_DeviceID {
+/**
+ * A resource for performing Flash DRM-related operations.
+ */
+interface PPB_Flash_DRM {
+  /**
+   * Creates a PPB_Flash_DRM resource for performing DRM-related operations in
+   * Flash.
+   */
   PP_Resource Create([in] PP_Instance instance);
 
   /**
@@ -21,7 +28,7 @@ interface PPB_Flash_DeviceID {
    * string in |*id| and will call the completion callback. On failure the
    * given var will be PP_VARTYPE_UNDEFINED.
    */
-  int32_t GetDeviceID([in] PP_Resource device_id,
+  int32_t GetDeviceID([in] PP_Resource drm,
                       [out] PP_Var id,
                       [in] PP_CompletionCallback callback);
 };