Introduce PPB_Flash_Font.

ppapi/api/private/ppb_flash_font_file.idl

+/* 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.
+ */
+
+/**
+ * This file contains the <code>PPB_Flash_FontFile</code> interface.
+ */
+
+label Chrome {
+  M24 = 0.1
+};
+
+interface PPB_Flash_FontFile {
+  /* Returns a resource identifying a font file corresponding to the given font
+   * request after applying the browser-specific fallback.
+   */
+  PP_Resource Create(
+      [in] PP_Instance instance,
+      [in] PP_FontDescription_Dev description,
+      [in] PP_PrivateFontCharset charset);
+
+  /* Determines if a given resource is Flash font file.
+   */
+  PP_Bool IsFlashFontFile([in] PP_Resource resource);
+
+  /* Returns the requested font table.
+   * |output_length| should pass in the size of |output|. And it will return
+   * the actual length of returned data. |output| could be NULL in order to
+   * query the size of the buffer size needed. In that case, the input value of
+   * |output_length| is ignored.
+   * Note: it is Linux only and fails directly on other platforms.
+   */
+  PP_Bool GetFontTable(
+      [in] PP_Resource font_file,
+      [in] uint32_t table,
+      [out] mem_t output,
+      [out] uint32_t output_length);
+};